AMSOIL Shipping Information
Online StoreAMSOIL Preferred Customer ProgramAMSOIL Business AccountsAMSOIL Dealership OpportunityOrder FREE AMSOIL Product CatalogContact Us
Email Price List

SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)

 SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Product Code: ALM • Brand: AMSOIL

The Top Tier of AMSOIL Synthetic Motor Oil. AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.

• 50% more cleaning power vs. AMSOIL OE Motor Oil
• Ideal for turbos & direct injection
• Guaranteed protection for up to 25,000 miles or 1 year

Package sizes include:

Quart Bottle
Gallon Bottle
30-Gallon Drum
55-Gallon Drum

See Pricing or Place an Order
MSDSData Sheet

Product Details

Product Applications

AMSOIL Signature Series Synthetic Motor Oil is excellent for use in all types of gasoline-fueled vehicles. It is recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:

Product Application Specs

• API SN (Resource Conserving), SM
• ILSAC GF-5, GF-4
• ACEA A1/B1
• Ford WSS-M2C945-A, WSS-M2C930-A
• Chrysler MS-6395
• GM dexos1 Gen 2 (supersedes 6094M) Fortified with detergents that exceed dexos1™ GEN 2 sulfated ash specifications.

Product Description

AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines. It withstands the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils. It delivers long-lasting performance and protection.

AMSOIL, the leader in automotive synthetic lubrication, produced the World's first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, the First in Synthetics®, to do the best job protecting your engine.

Protects Against Engine Wear

AMSOIL Signature Series Synthetic Motor Oil develops a strong fluid film that keeps metal surfaces separated while its robust anti-wear additives further reduce wear in metal-to-metal contact regions for maximum engine life. The Sequence IVA Engine Test, which must be passed to meet the industry-standard API SN specification, simulates extended periods of stop-and-go driving.

For 100 hours, the test engine cycles between 50 minutes of idling and 10 minutes of elevated rpm - conditions that encourage engine wear. The camshaft is then measured for wear in 84 locations and an average score is determined. We used Signature Series 0W-20, the lightest viscosity in the line, to further increase the severity of the test. AMSOIL Signature Series Synthetic Motor Oil provided 75 percent more engine protection against horsepower loss and wear* than required by the industry standard, extending the life of vital components like pistons and cams.

Cam Lobes Wear Test - AMSOIL SS reduces cam wear
sequence IVA engine test results
*Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.

Protects Pistons from Low-Speed Pre-Ignition (LSPI)

We armed Signature Series with an advanced detergent system that protects against harmful deposits and low-speed pre-ignition (LSPI). Most new engines feature gasoline direct injection (GDI), often combined with a turbocharger to boost power and improve fuel economy. These new technologies, when combined with a poorly formulated motor oil, promote LSPI and threaten engine operation. LSPI is the spontaneous ignition of the fuel/air mixture prior to spark-triggered ignition. It occurs in today's advanced engines and is much more destructive than typical pre-ignition.

Original equipment manufacturers (OEMs) like GM* have addressed the issue by designing tests to determine a motor oil's ability to prevent LSPI. The GM test allows up to five LSPI events to receive a passing score. Signature Series Synthetic Motor Oil provided 100 percent protection against LSPI* - zero occurrences were recorded.

LSPI piston damage when competitors motor oil is used

Protects Turbochargers

Our unique synthetic formulation is inherently stable to resist oxidation and neutralize acids. Signature Series Motor Oil provides outstanding protection against deposits common to high-temperature engine environments. The tremendous heat and stress turbos create can cause some oils to break down and form harmful bearing deposits through a process known as turbo coking. Over time, turbos can suffer reduced performance or fail altogether.

We challenged Signature Series to the GM Turbo Coking Test, which consists of 2000 cycles of extreme heat soaks. An oil must limit the temperature change within the turbocharger to 13 percent or less to pass the test. Signature Series limited the temperature increase to only 3.6 percent, protecting the turbocharger 72 percent better than required* by the GM dexos1® Gen 2 specification.

amsoil turbo bearing shaft protection

Extends Drains: Protection Guaranteed

AMSOIL Signature Series 25,000 miles drain interval technologyAMSOIL Signature Series Synthetic Motor Oil provides reserve protection, allowing you to go longer between oil changes if you choose up to 25,000 miles, 700 hours of operation or one year, whichever comes first*. Our unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize acids over longer periods. Signature Series is designed to deliver outstanding engine protection, cleanliness and performance over extended drain intervals - guaranteed. It provides peace of mind so you can fit oil changes into your schedule.

Oil Filter:

Any brand of oil filter may be used with Signature Series Synthetic Motor Oil. For maximum convenience, however, use an AMSOIL Ea® Oil Filter. Made of fully synthetic media with greater filtering efficiency and dirt-holding capacity than conventional filters, Ea Oil Filters are recommended for 25,000 miles/12 months or 15,000 miles/12 months, depending on application, which coincides with Signature Series' once-a-year drain interval. While Signature Series' 12-month service life remains intact if a non-Ea Oil Filter is used, the filter must be changed according to its manufacturer's recommendations.

Trusted by Professional Engine Builders

Engine Masters ChallengeDedicated engine builders and mechanics put in long hours honing their craft. These architects of powerful, high-performance engines turn to Signature Series to protect their passion.

"When we use AMSOIL, I don't worry about a film breakdown or an oil breakdown - and the oil pressure is always consistent. We've tested oils back-to-back on the dyno in our shop and we're always able to make more power with AMSOIL."

-Brett Bowers, Engine Masters Competitor and Professional Engine Builder

Maximum Cleaning Power to Battle Sludge

AMSOIL Signature Series offers Maximum Cleaning Power to Battle SludgeAMSOIL Signature Series Synthetic Motor Oil has 50 percent more detergents* to help keep oil passages clean and promote oil circulation.

Engine failures due to sludge are often caused by a plugged oil pick-up tube screen - the motor is effectively starved of oil. The Sequence VG Engine Test measures an oil's ability to prevent sludge. During the test, a Ford 4.6L engine is subjected to sludge-inducing conditions for 216 hours. The industry standard allows for 10 percent blockage before the motor oil fails the test. Signature Series produced a screen virtually free from sludge (see image). Its detergent and dispersant additives are so effective, Signature Series provides 90 percent better protection against sludge.

• *Based on independent testing of AMSOIL Signature Series 5w-30 motor oil, in the LSPI engine test as required for the GM dexos 1® Gen 2 specification.
• *Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
• *vs. AMSOIL OE Motor Oil
• *Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification.
* All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

Preserves Horsepower

The extreme durability of Signature Series Motor Oil ensures your engine runs stronger, for longer. We installed Signature Series 5W-30 Synthetic Motor Oil in a Ford* F-150 with a new 3.5L Ecoboost engine to test its ability to protect turbocharged direct-injection (TDGI) engines from torque and horsepower loss during extended drain intervals up to 25,000 miles. Power sweeps were done at the beginning and end of the test to evaluate horsepower and torque retention. As the graph shows, Signature Series helped maintain engine performance throughout the 100,000 mile test.

horsepower degradation test results

Limits Oil Consumption

Signature Series has a uniform molecular structure that limits evaporation and keeps it where it's needed most - protecting your engine. Volatility (burn-off) occurs when oil gets hot, causing lighter molecules to burn off or evaporate. This leads to oil thickening, additive imbalance, higher emissions and oil consumption. The NOACK Volatility test is the industry standard for evaluating motor oil high temperature evaporation. It measures the percentage of burn-off after a motor oil is placed under constant airflow at 482°F for 1 hour. A lower number indicates a better resistance to evaporation. Signature Series falls far below the API limit for volatility, reducing the need for frequent oil top-offs and limiting vehicle emissions.

noack volatility test results

Easier Cold-Starts

Signature Series Synthetic Motor Oil does not contain paraffins (wax) and stays fluid in temperatures of -58°F and lower. Extreme cold causes other motor oils to thicken, starving vital moving parts of lubrication, accelerating wear and even preventing vehicles from starting. Signature Series provides 66 percent better cold-temperature performance for easier starting, better fuel economy, improved oil flow (as seen below) and reduced wear.

pour point test results

Maintains Protective Viscosity

We formulated Signature Series with superior thermal durability that resists breakdown better than conventional and synthetic motor oils. The Sequence IIIH Test uses the Chrysler 3.6L Pentastar engine to evaluate a motor oil's ability to resist the damaging effects of heat. The test is conducted with oil temperatures of 304°F, 100°F hotter than normal operation, to accelerate oil thickening and deposits. Despite the extreme conditions, Signature Series kept pistons clean and held thickening to only 6 percent, a minimal amount compared to the proposed specification limit of 150 percent*. This stay-in-grade performance helps maintain maximum power and fuel economy while also ensuring advanced technologies like variable valve timing (VVT) operate as designed throughout the entire drain interval.

sequence III-H test results

• *Based on proposed ILSAC GF-5 Plus specification.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

SERVICE LIFE

Normal Service: Up to 25,000 miles, 700 hours of operation or one year, whichever comes first, in personal vehicles not operat-ing under severe service.

Severe Service: Up to 15,000 miles, 700 hours of operation or one year, whichever comes first. Severe service conditions include commercial or fleet vehicles; excessive idling; or frequenttowing, hauling, plowing or driving in dusty conditions.
• Modified engines (non-stock), racing vehicles and vehicles using alternative fuels (E85, CNG, propane, etc.) are excluded from extended drain interval recommendations.
• Change at the vehicle manufacturer's recommended drain interval outside U.S. and Canada.
• AMSOIL Ea® Full-Flow Oil Filters are designed for extended drain intervals. Do not exceed 12,000 miles or one year with other brand filters unless longer intervals are recommended by the vehicle manufacturer. Always change filter when changing oil.
• Check oil regularly to maintain proper fill levels.

AMSOIL Ea Full-Flow Oil Filters stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea Full-Flow Oil Filters.

COMPATIBILITY

AMSOIL Signature Series Synthetic Motor Oil is compatiblewith other conventional and synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil's life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL ALM.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

Technical Data

TYPICAL TECHNICAL PROPERTIES
Signature Series 5W-20 Synthetic Motor Oil (ALM)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)8.8
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)50.6
Viscosity Index (ASTM D-2270)153
CCS Viscosity, cP @ (°C) (ASTM D-52934385 (-30)
Flash Point °C (°F) (ASTM D-92)220 (428)
Fire Point °C (°F) (ASTM D-92)244 (471)
Pour Point °C (°F) (ASTM D-97)-50 (-58)
NOACK Volatility, % weight loss (g/100g) (ASTM D-5800)5.8%
High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D-5481)
2.67
Total Base Number (ASTM D-2896)12.5

Related Videos

LSPI Super Knock Prevention

Sequence IIIG Engine Test + Motor Oil Comparison

Cold Flow Pour Test AMSOIL vs Conventional Motor Oil


 SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)

Did this product meet your expectations?

(click on a star to vote)

Product Name: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Current Rating: 4.94out of 5 stars
Votes & Reviews: 209 vote(s) and 207 user reviews.


A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JOHN T.: space

AMSOIL OIL QUALITY

BEST OIL SOLD IN THE USA, NO MATTER WHAT TYPE OF CAR YOU DRIVE

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Madmax: space

Been using it for 10 years now

Great product! I use the same oil in both my vehicles.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hvymech: space

Beneficial product

Having used amsoil for many years I am sold on the product.however a recent occurrence
deserves mention. A 2004 Toyota Tundra belonging to my girlfriend has for the last 12 years
Had a mild knock at every cold startup that subsides as the engine warms up. I persuaded
Her to let me put Amsoil in on the last service. The knock was there at initial startup but I noted
Did not take near as long to quite. It has not made the sound since. 3000 + miles.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SeeDub: space

Just doesn't make sense not to use it

OK, fewer oil changes, better gas milage, longer lasting engine, easier winter start ups, less foreign oil. Need I say more?

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by NGCpt: space

Best Synthetic Oil Period!

In the eighties my father started using Amsoil in our family vehicles. He explained the benefits of using Amsoil. Over the years I tried other brands. I came back to Amsoil! Living in Phoenix with extreme heat, I need the best oil for my vehicles. I only run Amsoil in our three vehicles, and my air cooled Harley. Amsoil stands up to what Mother Nature throws at us. Thanks for a great product!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Irv: space

I have used amsoil on my long distance vehicles

Very good oil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

Great product will continue to use

You can trust that it's 100 % Synthetic and it also increased my mpg about 5% in my 2012 f250 6.7 Diesel Been using it ever since 3000 miles and now I have 68,000 miles very happy with the product

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space

I use nothing else in my truck

I use no other oil in my truck. The simple fact that this oil not only performs to a high standard in the heat, it also out performs other oils in Canadian winters. Therefore, I use nothing else in my truck and I also use Amsoil in my 2015 Indian Chieftain.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Iceman139: space

My investment deserves the best oil available

I drive my vehicle hard and fast and as in all my previous vehicles, I only use the highest quality and performing synthetic signature series oil as I feel it works well to protect my engine and I have never had a failure or worn out or blown up motor as my vehicles skirt around redline more often than not. Great protection and affordability and I can leave it in a little longer too knowing that the protection is there ( however I still change oil at 4500-5000 miles even though manufacturer says 8000)

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KLB: space

Great oil

We as a family have 6 vehicle & all kinds of 4 & 2 cycle small engine equipment and we use Amsoil in everything!!!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fred: space

Always the best

I always use Amsoil in my cars I race....never had a problem , been using it now for 8 years, five different cars !

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by koz: space

I have been using this product for years, no issues.

I put 200 miles a day on my truck. conventional oils require me to take down time to change to often.
with this product I swap out the oil with way less frequency. saving time and money. And my engins run great till 200-250,000 miles. it is a great product .

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Adam: space

Prevents sludging and can Go the Distance

I love this oil. I've been running in a 2006 F-150 for 6 years now (which has known sliding issues) without a hitch. I take a sample once a year and send it to a lab to get tested to make sure the engine is healthy. I put 10,000 on the oil and only added one quart in the middle over an 18 month time span. The test came back great. There were some higher metal contents due to rough towing in the mountains, but that was to be expected after what I put it through. They recommended switching to 7-8k intervals or one year, if I kept up the abuse. As long as you are not doing heavy towing, this will definitely last you the year it is guaranteed, and then some.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. Shine: space

The only products I trust

Amsoil has proven itself to our family over many years, and many different applications. Motorcycle, automobiles new and old, pickup truck, garden tractor, garden tools. We apply it to everything we can. The 5W20 has gone into our two Hyundai's both bought new. 2013 Sonata, and 2014 Elantra. Amsoil always surpasses expectations. Stays remarkably clean and right up to the full line on the dip stick.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeremey: space

Amsoil user for life

I have been using Amsoil for years. Started out using it in dirt bikes and ATV and now in all of my vehicles. Amsoil is nothing but quality and is a must if you care for your vehicles.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 2cyle: space

Awesome product

Use this oil in my pickup an it keeps everything clean in eng have pushed more than 1 Nissan eng over 100k on this oil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Michael: space

Been using for years

Using 5w20 Signature Series in new Ram 1500. Love the quality of Amsoil products. I can go long chang intervals without worrying about the oil breaking down.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by dan: space

a proven product

great motor oil as is the entire amsoil line of products

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gunner: space

I would buy this oil again

This is supposed to be the best synthetic on the market. Everyone I talk to who are mechanics swear by it.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Desrah: space

Efficiency

The Amsoil SS engine oil (5W-20) is a great product to help my aging vehicle drives performed like it was new. I can sense how fluid and effective my car responded to my daily high performances driving habits.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Trailhawker: space

Amsoil Oils

I use Amsoil for everything I can.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Herbie: space

Great product

I use it in my 2500 chevy

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jams: space

Used for several years.

I have used this oil product since 2005 and love this synthetic old for the long life between oil changes.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BustedKnuckles: space

New reoccurring customer

Always wanted try Amsoil before, found an online dealer and decided to give it a shot. Great product to use. Use it for my daily driver and motorcycle.
I really like how the oil quarts do not have that annoying film you have to break after you remove the lid and the design of the oil container as well. You don't have to hold a particular way to avoid air rushing back in causing it to "glug" when pouring in the crank case.
I run Amsoil oil filters as well, they come plastic wrapped inside the box to avoid any contaminates from getting in the filter. Seeing the plastic wrapped oil filter was a first for me. Every other brand I've ever bought was unprotected in a cardboard box.
Thank you.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greg: space

Have trusted this product for years

Have used Amsoil Signature in all of our vehicles/equipment and have never encountered engine wear issues

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike P: space

Love it

I use AMSOIL in all my equipment. Cars motorcycle, diesel work truck, power washer and generator. There is absolutely no way to go wrong using the best there is. So that's why I do it

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill G: space

I will be buying this product many more times

Used in a 2016 chevy spark.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

Great product. Car has 150000 and runs like new.

Once a year oil changes since car was new.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Isaiah: space

Would purchase again

Went to the 6mo. oil change ( 2) time and the oil after 6 months still looks clean.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. HoneyDo: space

My go to oil manufacturer.

I don't have any technical information, but I'm happy with the performance and mileage I'm getting in my Silverdado with a combined highway and stop and go daily commute.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Blake: space

The best rest assured!

Total reliability. Better fuel economy, cleaner engine, longer mechanical life. One higher priced change per year, but only one per year. Best product guarantee in the industry!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mikethedriver: space

It just keeps werkin.

Have several very hi mileage vehicles.. jeep with 300k Two F series trucks 300k & 400 k. So when we purchased new truck we put the signature series 5-20 and an Ea. filter on it. We feel pretty good about it.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vu Nguyen: space

yes

Great Product

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brbstafford: space

Use Amsoil in every engine I have

Amsoil provides superior protection and lubercation and increases change intervals to a management level. Everything runs better!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill F.: space

Signature Series 5W-20 Synthetic Motor Oil

Due to the extreme heat in my area I, by choice opt to use the Signature Series 5W-20 Synthetic Motor Oil to protect the 6.2 motor in my 2011 Ford F 150 Limited.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scout: space

I use only Amsoil

As usual the shipping was fast, the product received was the product purchased. The oil filter was a perfect fit.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by therr850: space

Synthetic oil is the best way to go for equipment longevity

I have used exclusively synthetic oil since it became available many years ago. I believe AmsOil is the best synthetic available at this time. Less oil consumption and smoother engine operation.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John _S: space

Been using Amsoil for 15 years!

I drive my vehicles in excess of 40,000 hard miles a year and have put several hundred thousand miles on each. Use Amsoil in the engine, transmission and gear boxes and have never had a single maintenance issue.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mose: space

I will buy this product again

O put this oil 5w20 in a 2010 Ford Expedition,in march and it still looks clean great oil pressure,this is August

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JCaba: space

Great product!

We use this oil in our Ford Fusion. We only put the best of oils in our vehicles and Amsoil makes an amazing product.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

I have bought this before and will buy it again

I use this in my Ford car and will definitely buy it again the next time I need a case of it. Since switching to Amsoil I have been changing my oil at 25,000 mile intervals. I save money on oil changes not only by changing it myself but also on the extended change intervals.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

Best oil ever

In all my vehicles

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

Have been using it for 20 plus years now

Great product, I have been an avid user of Amsoil for more than 20 years now.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Awesome Product

I use this oil in my Dodge Hemi and change oil every 25,000 miles. It does not use any oil between changes and runs great.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hammer 10: space

Best all around products

Put in son's power equipment and all of a our Harley Davidsons plus our Roush Supercharged Pickup.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Great Product

Would buy again

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Zig: space

What a great oil and filter

I find this oil to be worthy and the best of all oils. I can not believe that I put this oil in my 2005, Dodge Ram, 98000 miles, 4X4, Quad Cab, Hemi over 3000 miles ago, I just checked the oil and it still looks like the day I put it in. I used to have a little lifter tick, that went away and surprisingly I am getting a few miles better per. gallon, my truck simply runs smoother and quieter. Yes, this oil cost more, believe me my truck takes 7 courts, but I personally feel that if I can keep my truck for another 10 years for a little more now, then that is a big savings to me in more ways then one because, I like my truck, it still looks great and drives great, the best part is, it's paid off years ago and I don't see any reason to put myself in debt because I wanted to save a few bucks on oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BusDriverRick: space

This is good stuff

I like using an oil product that I can trust, and this is it. I get better gas mileage and feel like my engine produces more power. Amsoil is a proven product that has stood the test of time. Thank you for offering this to us.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bluewater: space

Pricing out of control

I think amsoil products are pricing themselves out of the market. My last order for oil and filters was over 800.00 dollars and while I love the product and the cars have lots of miles on them. Almost 75.00 for and oil and filter change is getting out of control!!!! Going to be looking for an alternative for my next purchase

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pete: space

Amsoil Signature Series 5W 20 Full Synthetic

Fuel and H.P. Gains Noticeable after changing over to Amsoil... I'll never Run Anything Else in My F-150 again!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CR: space

Good bye Amsoil

I did a complete inspection of my vehicle engine right when I bought it. There was no sludge in it. For the past 5 years I've been using only Amsoil in it and after an engine failure I opened the engine and discovered industrial quantities of sludge in the oil pan, all throughout the engine, blocked lubrication ports, etc. Head gaskets were in perfect condition, there was no antifreeze present in the oil.
I won't be using Amsoil anymore and I'm switching my other vehicle to a different brand too.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Norman: space

great oil

use it in 2008 ram hemi. good stuff. 5 star

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kersey52: space

Excellent product

Oil and ea filters are high quality and worth every penny

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark the pipeliner: space

Have used for years

Since my 2004 F-150 called for 5-20 I have used where required. Is far superior to any other 5-20 oil I tried and burnoff and protection.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scooter: space

Product and Service is impressive

Product was delivered on a very timely fashion. I go through the bother of ordering online because the product is the best.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TINY: space

WORKS OVERTIME IN THE HEAT

WORKS JUST GREAT IN MY ECOBOOST F-150. ENGINE LOVES IT AND SO DO I

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wayne: space

I will always use this product

I have been using this product since 1981 with excellent results.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by todd: space

oil

best oil ive ever put in my car

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MP: space

Trusted

I love putting the 5w-20 Signature series motor oil in my 2017 Jeep Cherokee. I trust it just like I trust the AMSOIL products I use in all my vehicles.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Johnny: space

I would purchase this product again

I've been using this product in my 2010 F150 sence in was new great product temp stays down in the heat of summer and easy starts in the brutal cold days in the hart of the winter.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Will: space

Would buy again

Great products great customer service excellent shipping time overall great company

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SwanyWI: space

5-20 in a Jeep Compass.

This oil has worked awesome in my wife's Jeep Compass. Gas mileage improved slightly and it starts great when it's cold also up in northern WI. We have 80,000 on and it uses no oil in changes.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ty: space

Amsoil Is Best

Stand behind Amsoil 100%

I'd put it in every vehicle I have but some leak so bad it would be to expensive.
I would NEVER run anything but Amsoil in a vehicle with good Engine and Transmission.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Easy: space

Only oil I buy for my vehicles

I use this in 3 of our vehicles,all use same oil and amsoil oil filters.Basically change the oil once a year.Best stuff out there!!!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big twin: space

I would never use any other oil

Use this in my 2003 honda accord. 220,000 miles and going strong. No worries

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by B: space

Great Oil

Great fule mileage and consistent viscosity over 12,000 mile change interval in a 5.7 Hemi.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shawn: space

Only oil ill buy

Everything i own that uses any type of oil gets amsoil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Will buy again

Awesome oil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kaly: space

2015 F150

I use my truck for work and personal time. I live in Toronto. Dealing with heavy traffic and temperaturea - 25 C at times, it takes a toll on the engine, very happy with the oil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

This is my "go to oil"

I use this oil in three of my vehicles and home generator. I have had nothing positive experiences with and definitely recommend it.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ras: space

5w-20

Great product, excellent service

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Todd: space

I'll buy more next year.

Good value, once a year protection.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dirty German: space

Synthetic Motor Oil

I have used Amsoil Synthetic Motor Oils for years now. The engines I put it in have gone 10's of 1000's of mile further than others of the same make and models which friends have owned. The engines run cooler and run better. And I consistently get better fuel mileage. Simply Put, I'm Sold.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by rdj519: space

Wifes car

Changing oil 1 time a year and trusting amsoil to protect our investment. Thank you

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JC: space

The only oil for me

This oil cause my engine to run cooler along with the great AMSOIL transmission fluid .

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by uncle richard: space

proofs in the pudding

I have used this oil in all my vehicles since 2006. I have a 2006 charger with 3.5 h/o it has 273,000 ; 2006 town and country 3.8 has 255,000; and a 2013 charger 3.6 pentastar which has 148,000 , which gets between 33 and 35mpg on the highway at 70mph. I change the oil filter and top off fluid at 12,500 miles on each vehicle. (High quality filters purchased from amsoil.)

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Electrobent: space

Keeps me out from under the car for as long as possible!

It seems to work. I have not analyzed any gasser oils yet but Amsoil was great in my diesels so I figure they can handle gasoline which is so much cleaner.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Great product. But...

For some reason, my gas mileage went down after putting this oil in my tundra. I reset the computer at every oil change. I was using Pennzoil 5w-20 and got 15.8 mpg over 5000 mile span. I am nearing 5000 mile mark on this Amsoil product and my mpg is at 15.0

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Flaco: space

This is the only oil I use in my cars.

Maintain all my cars with amsoil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BigdaddyMRI: space

I will use this product from now on

I use this product in my wife's new 2017 Hyundai. Since the break-in period is over, I now use the 5W-20 Signature AMSOIL in the vehicle. The gas mileage actually increased slightly, and the engine purrs now, which is a change from the break-in oil. I will continue to use this oil, without doubt.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ant: space

Excellent

Used in a new Dodge Caravan and works great

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob the Jeeper!: space

Simply my only option when it comes to Engine Oil

I have been using AMSOIL since 2013, love the quality and what the brand stands for. I will not consider any other brand for my Jeep Wrangler. Thank you!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

I am very happy with Amsoil products

Several years ago I was looking for a high quality full synthetic oil for my motorcycles and after I did a lot of research I decided to go with Amsoil. Since then I have become a preferred customer and I use Amsoil products in all my vehicles. I trust Amsoil products and I would recommend all their products.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by G: space

Great products, fast shipping

Love the extended oil change intervals, with no harm to the vehicles

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by billbob: space

oilman

used products from1997 to today

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PSM-0341: space

The best oil on the market.

I love the fact that AMSOIL allows the freedom from changing oil all the time.25000 mile oil is wonderful!Buy this product and simplify your life.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by patriot: space

Excellent Oil

Talking to a woman about oil is not easy, but a co worker and former mechanic was the one that got me started. I am glad he did. I have been using Amsoil oil for about 6 years and will not use anything else. I first bought it because i drive a lot of miles to work but now i work from home mostly and still use it. Amsoil has quality products!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pete: space

Love the entended drain intervals.

Great product because of the extended drain intervals that can sometimes go beyond their 25k recommendation. Just be sure to have an oil analysis done once in a while.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

I will always Buy Amsoil Products as they are top Quality.

Has keep our Vehicles Running smoothly and efficiently.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James: space

Best oil made

Been using 0w-20 and 5w-20 in our 2007 mazda 3s since it was brand new. After 107,000 mostly city miles and 10 years Engine still runs like new and have had zero leaks and still doesn't burn a drop of oil between yearly changes.
Use Amsoil and create less waste and save money and problems by changing your oil less.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Izzy: space

The only oil I trust

I've been using Amsoil for most of the past two decades. It's the only oil trust to protect my engines and now my firearms. They have never let me down and have earned my loyalty.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dino: space

The best

Been using this oil for awhile now like all amsoil oils. The best there is

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Svt2038: space

No complaints...

Let's be honest it's hard to rate in oil...My wife's vehicle calls for this weight. I do use Amsoil in all of my other vehicles so it just made sense. Interestingly when bought the vehicle I changed it over from conventionals oil it came with. Engine, Trans and PS changed. I saw a consistant 1.5 MPG gallon increase(70% highway/25% city).

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LBS27: space

Always the way to go!

I run Amsoil in everything I own, from motorcycles to cars to antique tractors. Why not spend less time under your vehicle a year changing oil? Great oil!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Zen: space

I would buy this again and again

Best synthetic motor oil that I've used on my car.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BK: space

Excellent engine lubricant

I have driven my Acura TL for over 100k miles using the Signature 5w-20 synthetic. I will use no other!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Orest: space

5W20 Signature Series

I currently use the 5W20 oil in my 2014 Dodge Caravan, (also previously in my 2006 Dodge Van), and in my 2008 Dodge Dakota truck and very satisfied with this product.
I also use 10W30 in my motorhome and have done so for the past 20 years, again with complete satisfaction.
As I live on an acreage, I also use 10W30 in my garden/lawn tractor, and have done so for the past 20 years.
In my opinion, this is the only oil I would use.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Amsoil use is smart

Use Amsoil in all 4 family vehicles, never let me down and is cheaper than conventional oil changes. Switched a 2005 F150 leased truck that I bought to Amsoil, now has 233K on it & still going strong.

Mike

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TreeTopKiller1: space

New car - top quality lube

Have a new Jeep Wrangler and figured I should change out the factory oil a bit early after break-in of the engine. Used the Signature fill as I keep my vehicles for a long time. May have seen a small increase in mpg.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 74packman: space

2003 Ford F 150

I switched to amsoil at 100k and original engine went 445K. Changed oil and filter every year at Christmas. No way that would have happened with conventional oil. For years now have run amsoil in everything I have. Good stuff.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Beef: space

Great Product

Signature Series 5w-20 goes in my two Honda Accords. Great oil that keeps those Honda engines going and going. each Honda has over 170,000 miles each and run great. Won't use anything else.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big Jerm: space

I would and I will be buying this product again

I drive a 05 ram with the Hemi. It holds 7 qts and oil changes were getting expensive. I noticed no matter the brand i would use at least 1-2 qts between oil changes which was around 3000 to 4500 miles. Since swapping to the signature series i went for an initial interval of 15000 miles. I noticed i would only use 1 qt every 5000 miles. I also noticed the truck doesn't tick and i haven't​ noticed a significant change in fuel economy. But i will be buying again this time attempting 25000 miles.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ff: space

Great motor oil

Best oil around

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Navy Cobra 02: space

If you get constipated, eat this stuff on pancakes!

I have been using AMSOIL products for about 8 years now at the insistence of the guy I bought my roadster from - had never considered synthetics before. Thought they were too expensive, didn't take the time to dig into it. Now I am using them in my roadster, van, pickup, push mower, string trimmer. It was even recommended to keep my garage door hinges from squeaking by the guy who installed the door (and yes it makes them as silent as the tomb)! I took a look at AMSOIL performance on a variety of ASTM lubricant tests; you should do the same. There are other good synthetic products on the market, but I think these are the BEST: I ran 8qts in my roadster for 5 years, admittedly not a lot of mileage on that car, maybe 500- miles/year but when I finally got around to having it changed I asked my shop to send a sample out for testing: 40% life remaining (in general terms). Folks, it's a no brainer in my opinion...why not buy the best to keep your engines running smoothly, cleaner, and cooler?

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

Great Product

Use it in all 3 of my Dodge vehicles. Outstanding value.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big Dave: space

Trusted and respected

Best protection money can buy. I know this oil is protecting my truck even through high demands of Phoenix summers.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Road Glider: space

Simply the Best

How can we spend so much for our vehicles and not want to take the best care of them we can? I've used AMSOIL's lubricants in every vehicle I've owned for many years, and have always felt I was taking the best care of them I could. The 5w20 Signature Series I use in my 2013 Dodge Durango has given me so much peace of mind. Why would I want to use anything else?

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mongo72: space

Been using AMSOIL since 2003 ,will continue doing so .

Have 303,327 miles on the 03 honda civic,and still get 38 MPG.No smoke out the tailpipe,and still change the oil at 25,000 miles.Signature Series oil works for me ,the proof is the civic,not snake oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Squire: space

Amsoil makes older vehicles run like new.

One vehicle I have is a 1988 Bronco II 2.9 engine 5speed. I have all Amsoil lubricants installed in it. THE ENGINE REALLY LOVES THE 5W30 Signature series oil.The Amsoil fluids really make a difference.Thanks Paul

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by sly: space

I would recommend this product to anybody.

This oil, for what I do is excellent. I get between 15000 km to 20000 km before the next oil change and my gas mileage is a little better and the oil filter you only change every second oil change. I would recommend this oil for anyone.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Grosspolluter: space

Tried it

Are used to use Pennzoil 1030 all the time aside to switch synthetic when I bought a new her car with low mileage and I use synthetic and all mine your engines and I like the amzoil product so far no problems

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rene: space

That oil help my motor sound and gas millage

I love this product it make what suppose to do and long life

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steven: space

I love this oil

I use amsoil because of the superior protection and longer change intervals this product has been the best oil I have ever purchased and used for my truck boat and even my lawnmower

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JGTX: space

Mazdatx

Great product to maintain my daily driver

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sufiztic: space

Best Oil I've Ever Used

I'm a car guy. I've used all the top name brands u can think of, but no oil has ever given me 20k+ miles on a single oil change, and I drive my cars hard.

I've done and undone engines with friends and never seen cleaner internals with Amsoil in it. I'm a forever Amsoil Customer!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave507: space

I would buy this product again

Great product

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by NA: space

I have used this product for years and will continue to use

I use it in my vehicles. I like not having to change my oil every 3000 miles. I have had great luck with this oil. I will continue to use this oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Berniemac: space

A true quality product.

Use this oil in a Ford Raptor that travels cross country. I trust this lub for high mileage protection.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Allen: space

amsoil

great product

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Old Man Engine: space

Fast Service

Fast service, knowledgeable about product, fast shipping.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Eazy E: space

Hands down, Great product, Great service!

Saves me money in the long run. Less oil changes. Great performance!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mikado: space

Use this exclusively

I use it in my car,change my oile 1 time and forget it

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PolarBear00777: space

The 5W20 is the best engine oil

I have been a long time user of AMSOIL products in everything I own and I have found that the 5W20 is the absolute best engine oil. It has almost the same low temperature benefits as the 0W20 but less burn off than either the 0W20, 0W30 or 5W30 engine oils. It is the only oil I use for my customers now.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space

I would purchase this product again.

Great product. Been using Amsoil for about ten years. My only complaint was the shipping charge. Amsoil has been running specials for preferred customers were they've been offering free shipping on orders over over a certain amount. When they offer this deal that's when I place my order.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by flexsilver: space

the only oil you should use

my '05 Mustang GT is a daily driver ( winters too ) with 165,000 kilometres ( about 100,000miles ). I only use Amsoil products and whenever I do oil changes at the dealership/shops, they always comment on how clean the oil still is - although you can go 1 year before changing, I change my oil sooner as it is a daily driver in a busy,dusty environment. I use the EA011 oil filter plus steering/transmission fluids and Severe Gear rear differential fluid and Slip Lock additive. I used to use Amsoil brake fluid but it can no longer be sold in Canada. Thanks Amsoil for the great products and service. Kevin Miller

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ENORMOUS: space

Best oil in the world~

I have been an Amsoil customer/member for over a decade. This is probably one of my favorite companies around. Thank you for an excellent product and customer service. Oil & full-flow EaO filters keep my vehicles in tip-top shape year in and year out. I even go as far as testing the motor oil through an independent lab, the results are top-notch wear and tear. Without reservation, Amsoil is hands-down second to NONE!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MR.G: space

My experience

I have been using AMSOIL products since 2002,I have never had a problem with ordering,shipping,billing,or product quality.I am very happy with all aspects of AMSOIL.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by diamonbird: space

The best oil

Been using Amsoil since 2001 nothing else can compare.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Moe: space

Signature Series 5W-20 Synthetic Motor Oil

I 've used this oil for a long time never wanted to try anything else like oil with color in it I just wanted a truly good product thats why I stayed with Amsoil hasn't let me down and I recommend it to everyone

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by runner: space

Great oil

Used amsoil for 20+ years. SS series is great for long drain intervals. All of my engines have many miles on them thanks to protection this oil gives.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Luis: space

5W-20

I use it on my ford vehicles. The product and lab reports on it speak for themselves. This is a must product if your vehicle requires it.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Daniel: space

Buy al time to replace your oil

Always I put in my Linconln, Navegator and MKT 100/ recommend. Real synthetic

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by William: space

Top Notch

Phenomenal

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

225,600 on the ford

Great oil, 13k between changes with their filter. 225,600 on the ticker.
This oil has been in this October 1995 F150, 351w all of its life!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Randolph: space

Been using this product for years. Will not use any other.

Changed the oil on our 2014 Lincoln MKX.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kenny: space

Fantastic oil love it

Love it really works for me

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Will continue to use this product and highly recommended.

Amsoil 5-20 oil is great. I normally run it a little over 5k miles in my truck, no more then 7k miles, and don't notice a large drop in performance from then and after the oil change.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Viacheslav: space

I would buy this product again

Great stuff

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Frank: space

Recommended for all combustion engines

Have been using amsoil since its start before being called amsoil. Had a ford explorer for 13yrs 278,000 miles. Still had factory compression specs when I sold her.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Protecting my twin-turbo V6

I've been using this oil in my 2010 Taurus SHO since I purchased it in 2012. I've been on an annual oil change for most of that time, but recently changed to twice a year after I had the oil analyzed to see the impact the turbos had. While the oil was holding up, it was clear that a more frequent oil change was warranted. I've used this oil in my wife's car and the predecessor of the SHO. I also use this in my 1977 Corvette (albeit a different grade) -- so all my vehicles are protected.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

My wife demands reliability in her car

Shortly after purchasing a 2013 Ford Edge with a V6, I switched from the oil installed by the oil change place to the Signature Series, which is what I run in all my vehicles. Annual oil change is my routine and it's clearly doing its job. I had another vehicle opened after running signature series in it for years and there was zero deposits (sludge) in any visible area (including on top of the heads where it is common). I've been using Amsoil for about 10 years and trust them to keep my cars in good running order.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Amsoil...there is no equal

I have been using Amsoil products since April 1991 and trust them completely to provide the best available protection for my motor vehicles. In my opinion, there is no substitute or equal to Amsoil's many years of R&D in synthetic lubricants and their resultant superior products.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Great oil for the long haul.

I use it in 2008 Taurus and a 2015 Ford Explorer. I've used it in the Taurus since 3000 miles and it now has 115,000 miles on it and have had no engine issues and still get 22 - 25 mpg. I bought the Explorer new and have used it since the first oil change and it now has 41000 miles on it. Love the oil ! I would recommend it to anyone looking for a high quality Synthetic motor oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ANTHONY: space

My choice for my daily drivers

I have been an AMSOIL fan for two decades and continue to be super impressed.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ken: space

Definitely buy this oil again

Car seems to run smother with this oil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scot: space

Amsoil 5W-20 Signature Series Engine Oil

I use Amsoil Signature Series 5W-20 Oil in my 2014 Ford F-150 for maximum protection.
The engine is the 5.0L, and it runs very well with this oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Willie: space

AMAZING OIL

Hands down best oil around.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Charles: space

Will never use another oil

Put this in two cars with over 150000 miles improved gas mileage by 10%

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doug: space

Have used this product for several years.

Could tell the difference the first time I changed to this oil. The van runs smoother and uses very little between changes.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gordon: space

Excellent Oil

I have used this in my 2008 Honda since new and runs like a top.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bruce: space

Great oil

Not much to say. I have relied on Amsoil synthetic motor oil for 15 years now and have not had a single oil related failure in either of my vehicles, including one having a catastrophic oil leak (more like a hemorrhage) after which I drove 10 miles to a repair shop without damage to the engine.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bruce: space

Saved my engine

Not much to say. I have relied on Amsoil synthetic motor oil for 15 years now and have not had a single oil related failure in either of my vehicles, including one having a catastrophic oil leak (more like a hemorrhage) that emptied the oil pan, after which I drove 10 miles to a repair shop without damage to the engine.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Karvoris: space

Great oil Great investment

I've been using Amsoil for my 2012 RAM 1500 since day one. This oil is great no issues and as of now I'm 70,000 miles in. Oil is changed annually which is approximately 14,000 per change haven't had any issues. Motor still runs strong and solid.

I look at it like this if I can invest over $30,000 into a vehicle I can invest $100 in an oil change yearly which is still cheaper than the every 3,000 miles conventional oil changes that our so common. I stand by this brand and their products.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Royce: space

Can't run without the best.

Excellent product, improves gas mileage and reduces engine wear.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Curtis: space

THE BEST OIL ON THE MARKET TODAY

Amsoil is the only oil that I purchase, I said purchase be cause I don't use oil (or burn oil) in1994 a friend had a cat engine in his over the road tractor trailer rig, He had 1.2 Million miles on it and a cam follower broke on the valves so he had to pull the hole front end down to replace the cam. He told the shop to go ahead and do a in frame overhaul so they mike all the parts, and they were all at Factory specs. that's when I be came a Amsoil customer. I Have It in my Truck, Car, Harley, Quads, lawnmower, power washer. Boat, and Chain saw. I wont use any thing else. It wont break down with Heat.
Curtis T. Sherwood

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Leonard: space

yes I have for years

year round for Ford Focus

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Richard: space

HUGE difference

This oil and filter made my 5.7L V8 Toyota Tundra a whole other animal! Engine definitely runs smoother than the last 240k miles I did on it and I have noticed about a 1mpg gain. I also noticed a smoother acceleration and a bit faster too! If u want a long lasting a smooth running engine then this is definitely the oil for you.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mad Max: space

Amsoil Products are second to none

I've been using Amsoil since 1989 when I use to race snowmobiles in the north east the product never let me down. I used Amsoil in motorcycles, 4 wheeler and side by side again this product came through no matter what abuse I put my toys through. I've recently got into cars since my move to NC I have 2015 Mustang GT that's pushing 703 RWHP AND 600 FPTQ to the wheels from past experience with Amsoil the only oil for my ride would have to be Amsoil. I ran a (153) 1/2 mile in Clayton GA at Heavens Landing this year and plan on taking the car in March to the Texas mile. Amsoil is so much more than oil I use there anti freeze, gear oil, octane boost and much more. The Staff is outstanding, the shipping to your front door is insanely fast and well packaged. Thanks Team Amsoil for a great 27 years and hope to have many more ahead of me.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lenden: space

Good product

I use Amsoil in all my motors. Gas and Diesel. Cars , Pickup Diesel , Tractor Diesel, Stays cleaner and last longer. Has reduced oil consumption on high mileage motors.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Leon: space

Toyota Tundra

Bought a new Tundra for the wife. When due for the first change I went wild and changed it all to amsoil. I believe this coupled with CAI is what gave us the 1.5mi gas increase!! Plus always better with the piece of mind I get with my amsoil products.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Thomas: space

Great oil

I love the oil and my service intervals got extended also.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Thomas: space

Great oil

Love the oil and extended service intervals. Gas mileage went up as well.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mad Max: space

I've been using amasoil for 28 years

I first discovered Amsoil when I started racing snowmobiles in 1988, I've always found that amasoil always came through and could handle extremely cold temperatures. When I was into motorcycles once again Amsoil was my first choice if it was my 2003 V-max with 162 RWHP or my Vrod again Amsoil product are second to none. I'm starting to play in the car seen and have a 2015 mustang GT pushing 650 RWHP & 562 RWTQ I wouldn't trust any other oil in my insanely fun weekend car. Amsoil thanks for a fantastic 28 years and hopefully 28 more..

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Southern Wolf: space

Would use no other oil.

I have been using Amsoil in three of my vehicles now. One I sold with about 280k miles and it did not use any oil. As soon as I got my new car home I change out the factory oil to Amsoil. I have a Jeep Wangler that I put a performance Chevy 350 in., 340 hp 390 ft lb torque. I have had over heating problems with it and have driven it all day with temps over 230. The oil did not cook and I still don't use oil, I've put over 60k on this engine using the Z Rod oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andy: space

Have been an AMSOIL Customer for several years

Have used AMSOIL oils and filters for several years now. Can tell a difference just by loooking at the oile when changing. Other oils when drained show wear by the dark color. With AMSOIL it looks like it could go a few more thousand miles.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BC: space

Excellent motor oil!!

Tried Amsoil products at the advice of a good friend, very satisfied with the results! I have a rotary motor and as you know they are very tough on engine oil, after 2000+ miles the oil looks almost new, great stuff!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bullseye Tom: space

30 year customer of Amsoil

I use 5W-30 signature series in my 2005 Mercury Sable 3.5 liter V-6. I get quick starts in the depth of winter (-10 - 15F) and smooth running in mid summer on the interstates. I would never by choice subject my vehicles to a lesser lubricant series that Amsoil fully synthetic motor oil and transmission fluids.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by War Path: space

Going Strong with Amsoil for the past 40 years

One of the best Oils on the Market, I have use this product and several others from Amsoil in every motor
I own and have never had a failure. From 2 cycle lawn equipment, all my cars, both diesel and gas boat motors everything has been run on Amsoil. Started back when I raced Snowmobiles, and beat all the factory teams.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rod: space

I do buy this product again and again

It is expensive, but to only worry about changing oil and filter every 25k miles is worth it in convenience. We have a Mustang with 170k miles, a Ford 500 with 130K miles, and an F-250 with 98k miles. The only problem with the pickup is that it uses a quart and a half between oil changes, so that increases the cost.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by olestick: space

oil

Great, great oil all I will use in both of my vehicles

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Just a guy: space

Actually increased my mpg by one mile

When my service shop mistakenly changed my oil to regular oil I noticed a dip in my mpg by a little more than 1 mile per gallon. I suspect that it would be more than that in the winter months plus easier to start and less wear on my battery and starter.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TigerRoush: space

My choice of motor oil for my vehicles

After reviewing oils including Royal Purple, Mobile 1 etc I found Amsoil to be top notch.
I would not use anything else in my vehicles. I also use the Amsoil oil filters which are the best.
Amsoil is higher in price but quality of product and piece of mind that my engine is protected is priceless.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joey: space

This is some good stuff

I purchased a Chevy truck with a Duramax engine and got information that Amsoil was the oil Duramax owners used so I started using Amsoil, I purchased a 2004 Honda Accord with 202,000 miles on it for a vehicle to drive to work, the former owner said that the oil was always changed on time with Honda brand oil, he said that it would use about a quart between changes, first thing I done was change the oil, put this signature series 5W-20 synthetic in it also used the amsoil filter, 3000 miles it used about a quart, changed the oil at 3000 miles, went 5000 miles on the second change didn't have to add any oil to it, may have used a half a quart, changed it at 5000 miles, hoping it won't use any after this next 5000 miles, to me this signature series has to be doing a good job to make a 210,000 mile car go 5000 miles between oil changes with no oil consumption.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

The only oil I use!

I use Amsoil signature series engine oil in my Ford Expedition. I have had an independent oil test done after 25,000 miles and it showed the oil to still be ok. It may be one expensive oil change but considering how much longer you can run the oil vs. changing it every 3000 miles this is a lot cheaper and a lot less Saturday afternoons wasted changing oil. Thanks Amsoil for a great product.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by '10 Charger RT NC: space

Amsoil Customer for years

What is there to say other than it is simply the best product available. If you use synthetic, there is no reason not to use the best and Amsoil is simply the best that a non chemist like myself can find. Do not buy the Mobile 1 or other products because they might be cheaper and then depend on them like you would Amsoil. Buy Amsoil, spend the little extra and then have fun without the worry. 2010 Dodge Charger RT, Super R&T, CAI, oil catch can, Flowmaster 50's. Fun, fast, worry free. Use the full syn, 25K mile filters and change at about 10-12K miles religiously. She runs great, 102K mile thus far. Sounds great. Like the ad says, "Just Do It"! Amsoil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by dutch: space

i would buy and use all of your products.

i have use amsoil for the last 20 years had a 7.3 d for 15yrs. had 360.000 miles on it when i sold it and not
one oil problem with it . your oils gave me better all around performance and i still use it in all my vehicles
to this day.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jve1966: space

Great product

In my honest opinion, I love this oil. My honda 2008 civic is at 277000 miles and i owe alot to the fact that amsoil has thw best product in the market. I usually change my oil around 25k miles. One time, I was 35000 miles on an oil change! My car still has the pep it did when I bought the car. I switched from a competition product to amsoil about 10000 miles from being new. I highly recommend this oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mitchell: space

Amsoil

The only oil that I use. Have been using it for 20 years. Best on the market.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jamie: space

Highly recommended!

I drive a lifted 2005 Ram mainly used for towing an enclosed race car trailer and noticed an increase in engine performance, and a MPG increase.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Manny: space

If they oil for deep frying a turkey, I'd buy that too!

I been using 5W-20 AMSOIL in my supercharged 06 Mustang for years. Runs like a champ. Also use it in my 10 F150 KR as well which I use for hauling and road trips. Wouldn't recommend any others. Great oil, provides solid protection. I use their other fluids in my vehicles as well to include my 14 VROD Muscle and 09 Nightster.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ranger Pat: space

Nothing but Amsoil in my vehicles.

I have been using Amsoil in my vehicles since 2005. The money and time I save using the extended life filters and the quality of the oil is unsurpassed. I am glad Amsoil now has oil for my Dodge Ram 1500 Eco Diesel.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pops: space

Facts about AMSOIL

I did not really believe all the claims about AMSOIL until I checked for myself. I used it, had oil analysis done and was amazed at the results. I have been a user for 12 years in 4 vehicles and have no worries when it comes to lubrication of the engines internal parts.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by WoodyJer: space

transmission smooth shift.

I am a 15yr customer. I have been running AMSOIL in all my vehicles. One of my cars is a 97 Geo Metro with a 5 speed trans. The car has 320,000 miles on it. I use it daily to run errands. I didn't want to part with the 52 mpg so I rebuilt the engine. The transmission was hard to shift. After running amsoil 80-90w trans- oil for about a month it now shifts smooth. I have been driving both of my cars with confidence. I run amsoil 5w-20 signature series motor oil in both of my cars. The only negative I have is that I wish shipping was free. Jerry

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DRACO: space

I Only Use Amsoil

I have been running Amsoil in my vechicles for over 10 years, now I am using 5 W 20 motor oil in my jk which I wheel often as well as daily drive, the oil is great and my vechicle appreciates it.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Meanmike: space

I would not use anything else...

I started using Amsoil Signature Series 0W-20 in March 2008. I was skeptical that oil could last a year so I tested it out on my Mercury Sable before putting it in my F150. I always used Mobile1. After one year and about 14,000 miles I sent out an oil sample to be tested. It came back no damage to the engine and that I could kept running the oil. So I ordered enough oil for the Sable and the F150 and have been running it ever since in every vehicle I own. I started using the 5W-20 when it became available. And I always use Amsoil oil filters.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ron: space

best oil I have used

I have used most of the major brands of synthetic oils out there in my pickups, cars and motorcycle, both gas and diesels . The increased oil change intervals alone make Amzoil signature series oils worth it. Just gage the oil changes using the on board computers and you will see the difference . Every other premium synthetic lasted approximately 6,000 to 7,000 miles going down to 5% life left. Amsoil goes over 10,000 miles on every oil change at 10% life left. defiantly a superior oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rich: space

It's all I use

I have been using the signature series 5w-20 synthetic motor oil in my 2005 Dodge Ram 1500 (Hemi) since it was new and after 11 years it's still running strong.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

New car 1st oil change

I got my new Mustang up to 10000 miles which is the oil change interval and have used Amsoil for the past 5 years. I like that I can change AMSOIL once a year as it saves money in the long run plus their oils are the best. I only use AMSOIL in my cars since about 2010 and have had no issues.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

Excellent oil

I have been using Amsoil since 1975 and love it. I have never had an oil related problem and have had mechanics comment - your engine is so clean, how did you do it. I do not exceed 12 to 15,000 miles a year on my vehicles so I change oil once a year, use Amsoil filters, change filters at 6 months - just me. I am a preferred customer and plan on using Amsoil forever.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

I will continue to buy this product.

I have used this oil for several years with very satisfactory results. The only drawback is that it is priced in American dollars and starts to become expensive when the exchange rate widens.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stu: space

Still The Best

I've used AMSOIL exclusively in my previous and current Jeep Grand Cherokee Overland. I learned of Amsoil through an Internet search looking for the best motor oil. I'm more interested in the quality of the oil than I am with extended intervals. I trusted the reviews and comparisons and I felt the difference in the performance of the 8 cylinder Hemi. Just seems(s) to run more smoothly. I can't see/feel any difference between the Signature Series and the previous flagship BUT I'm now consistently getting 20mpg on my daily 120 mile, highway commute. Prior to changing over to the SE I was at 18-19mpg so something has changed for the better.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Al: space

5w-20

I just put this oil in once a year and forget it.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fuzz: space

Amsoil Signature Series Motor Oil

I have been using Amsoil synthetic oil since the 70's. This was at the recommendation of my father in law who was a professional master mechanic for a large public utility company. Amsoil synthetic oil and grease has been used in all of my vehicles over the last 40 years without any internal engine failures. Easy starting in below zero winter temperatures without any hammering or pounding noises. For clean and efficient engine performance there is nothing better than Amsoil synthetic products!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Downtown: space

Had to see for myself

Signature 5w20 from first oil change in my 2014 fiesta st.
1.6 liter ecoboost, 60k later I still can't see tracing on cam lobes and motor is spotless. 13k oil changes/ oil reports show no unusual wear metals. Viscosity stays consistent, tbn over 3 and NO oil added between changes. Looking forward to see longevity of this mill!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don,: space

Once a year oil change.

I have used this product in my 2012 Ford Explorer since I purchased it in February of 2012. I drive about 20,000 miles each year and it only change oil once a year. I have not had to add oil between changes.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mustang Fiend: space

Best oil around

The oil was perfect for my 2016 Mustang GT. I wouldn't buy any other brand, only the best for my baby.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Old timer: space

I purchased a new Ford 4x4 and wanted the best protection

My truck uses 8 qtrs and I was not wanting to change the oil every 3 to 4 thousand miles so I used Amsoil for the best protection and duration. I use Amsoil in all of my transportation. Never had a mechanical problem. Start out with the best and don't worry.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don: space

100k plus miles

From it first oil change I have used Amsoil 5w20 and to this day runs like new. In fact all my engine run in Amsoil products. Very happy with the performance and durability it keeps giving.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BK: space

Amzoil is # 1

I've been using Amzoil products in all of my vehicles since 1988.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rumen: space

excellent products

For all my cars

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Facta Non Verba: space

Mileage improved significantly on Lincoln Towncar

We now use Amsoil 5w-20 Signature Series + Amsoil EA-Series Oil Filter on a 2004 Lincoln Towncar. Mixed driving mileage improved by 3 mpg over the OEM oil + filter, and highway mileage increased 5 mpg. The engine runs much smoother, particularly at idle. So far, the 5w-20 Signature Series has demonstrated itself to be of the same exemplary quality consistent with other grades of Amsoil Signature Series.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Excellent

I used this oil in my wife's 2010 flèx and we just turned it in with 150k miles on it and the car engine was running like it was brand new. It cost a bit more but well worth it. In fact we just bought a new 2016 flèx and this is the only oil I will use. I bought enough to change the oil until she reaches 100k. I also use their diesel oil for my 2006 Ford F-350 diesel.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Facuanj: space

Oil

I only used AMSOIL products in my vehicles.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Raz: space

Won't buy any other oil.

AMSOIL synthetic is the best!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Skippy: space

Great oil

Best oil ever.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Die hard Boys fan in Texas: space

Yes Ill by Amsoil until the end.

Ive got Amsoil in everything from my 87 Bronco to my 06 Expy. Motor oil transmission fluid in both. My wife has the European oil in her Turbo Beetle and my mowers have the 4 stroke small engine oil. I use everything from zrod 20-50 to 5w -40 European turbo safe oil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

AMSOIL

Best oil period

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

Share your AMSOIL Experience
by writing a review


smaller | bigger

1-855-519-1529

Price List Request

Receive wholesale price list in your email.