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SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)

 SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Product Code: AMR • 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. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines. AMSOIL AMR 5W-50 is a robust synthetic motor oil formulated specifically for high-horsepower engines including Ford Mustang.

Package sizes include:

Quart Bottle
Quart Bottles (case of 12)

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, SM
• Ford WSS-M2C931-C (Mustang)

Product Description

Protects Your Engine: AMSOIL Signature Series Synthetic Motor Oil provides outstanding anti-wear protection. It 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. In the Sequence IIIG test, which is normally run for 100 hours, AMSOIL Signature Series Synthetic Motor Oil delivered outstanding wear protection for the camshaft and lifters, even after doubling the test interval to 200 hours. For details, see the Double-Length Sequence IIIG Engine Test Technical Study (G3320).

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.

Extends Drain Intervals

AMSOIL Signature Series Synthetic Motor Oil can extend drain intervals far beyond those recommended for conventional oils. Its unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize acids over longer periods. Signature Series Synthetic Motor Oil is designed to deliver the best possible engine protection, cleanliness and performance over extended drain intervals. It reduces vehicle maintenance and waste oil disposal costs.

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.

Maximizes Fuel Economy

Signature Series Synthetic Motor Oil is designed to maximize energy efficiency for optimum fuel economy. Unlike conventional oils, its uniform molecular structure helps it flow more freely and reduce friction between metal surfaces. Anti-friction additives are included to further improve energy efficiency.

Reduces Engine Wear

Signature Series Synthetic Motor Oil provides outstanding anti-wear protection. It has excellent viscosity film strength to separate metal surfaces and robust anti-wear additives to further reduce wear in metal-to-metal contact regions for improved engine life.

Keeps Pistons Clean
Excess piston deposits can lead to pre-ignition and engine knocking, which results in lost power, reduced fuel economy and, in severe cases, engine damage. Signature Series' premium additives and naturally high resistance to extreme heat help keep pistons clean for maximum engine performance. After a double-length, 200-hour Sequence IIIG engine test, Signature Series demonstrated outstanding cleanliness properties and shattered the requirements of a 100-hour test.

Keeps Pistons Clean

Reduces Oil Consumption and Emissions

Volatility (burn-off) occurs when oil gets hot, causing high oil consumption and emissions. Signature Series resists volatility better than other oils, helping reduce oil consumption and emissions.

Excels in Extreme Temperatures

AMSOIL Signature Series Synthetic Motor Oil resists thermal (heat) breakdown better than conventional oils. It is heavily fortified with detergent and dispersant additives to help prevent sludge deposits and keep engines clean. And unlike conventional oils, Signature Series Synthetic Motor Oil contains no wax, staying fluid in the coldest winter temperatures for easier starting, improved oil flow and reduced bearing wear.

Compatibility

AMSOIL Signature Series Synthetic Motor Oil is compatible with other conventional and synthetic motor oils. Mixing AMSOIL motor oils with other 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.

SERVICE LIFE

• Normal Service - Up to 25,000 miles, 700 hours of operation or one year, whichever comes first, in personal vehicles not operating under Severe Service.
• Severe Service - Up to 15,000 miles, 700 hours of operation or one year, whichever comes first.

Severe Service: Primarily short trips (less than 10 miles [16 km]); turbo/supercharged engines; commercial or fleet vehicles; excessive idling; first-time use of AMSOIL motor oil in a vehicle with more than 100,000 miles; frequent towing, hauling, plowing or driving in dusty conditions.

• Modified engines (non-stock) and those using E85 fuel are excluded from extended drain 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 change intervals. With other brands, do not exceed six months or 10,000 miles unless longer intervals are recommended by the vehicle manufacturer.
• Check oil regularly to maintain proper fill levels.

AMSOIL Ea® Full-Flow Oil Filters are designed for extended change intervals. They stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea Full-Flow Oil Filters.

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 AMR.

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

Close Product Detail
Technical Data
TYPICAL TECHNICAL PROPERTIES
AMSOIL Signature Series Synthetic 5W-50 Motor Oil (AMR)
Kinematic Viscosity @ 100°C, cSt (ASTM D445)20.3
Kinematic Viscosity @ 40°C, cSt (ASTM D445)127
Viscosity Index (ASTM D2270)184
CCS Viscosity, cP @ (°C) (ASTM D52935052 (-30)
Flash Point °C (°F) (ASTM D92)230 (446)
Fire Point °C (°F) (ASTM D92)252 (486)
Pour Point °C (°F) (ASTM D97)-47 (-53)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800)7.4
High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D5481)
4.7
Four-Ball Wear Test @ 40 kgf, 75°C,
1200 rpm, 1 hr, scar diameter, mm (ASTM D4172)
0.35
Total Base Number (ASTM D2896)12.6
Close Technical Data

 SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)

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Product Name: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Current Rating: 5out of 5 stars
Votes & Reviews: 22 vote(s) and 19 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 HotRod: space

Nothing else in my baby!

AMSOIL formulated this oil specifically for my Ford Coyote V8 engine, why would I use anything else? My vehicle is heavily modified for performance, I need the highest performing motor oil available and from the research I have made on my own that oil is AMSOIL. I am an engineer by profession, I want things to be precise and exacting, that's what I get with AMSOIL.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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

Great products

Great product used it in a very high mileage vehicle haven't had any issues

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Norcalcobra: space

Best oil available

I use this in my gt500. I push the car hard knowing Signature Series has got me covered.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 hollywood: space

love this stuff

always recommend this stuff

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Outlaw mike: space

Best syn oil out there my boss mustang runs great

Car runs strong and smooth

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Willy: space

I would buy this product again

Use it on my 1995 Chevrolet Camaro z28

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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

Always Amsoil!

Wouldn't use anything else in my new Focus RS! I run Amsoil in all my toys! Cars, Ducati's, and waverunner!

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Musicman: space

I will buy this product again

I use it a 1998 CHEVY VAN WITH 200,000 MILES.rUNS GREAT ,EASY STARTS ON -30 DEGREE WEATHER WITH INSTANT OIL PRESSURE.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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

Best I Have Ever Used

I use this product in my 1989 Toyota pickup truck. This truck has 360,000 miles on it and is going strong. I also use Amsoil in all of my other vehicles and would not consider anything else.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Dman: space

Only oil I use.

I run a fleet of vehicles and we use Amsoil in all of our vehicles. We get great life from all of them.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Gaylord: space

GT Cas

This product was used in a Ford Mustang GT CS

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 CM6248: space

Great oroduct and I will definitely purchase more

I use this oil in my vehicle because it meets my manufacturer''s specifications. Also, I noticed after about a hundred or so miles that a nuicanse tick went away.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Mgizzle: space

Great product

Put it in my track camaro, 2013 SS 1LE, last year april so 2015. Had about 4 track day HPDEs then car stored for 6 winter months, metro detroit michigan, unheated garage. Took car out this april did 2 veeery hard track days on same oil, hit 300f on oil with average around 295F for 6 20 minute sessions.... Total now 3500miles for a year on amsoil filter. Sent for lab analysis to blackstine labs oil was in great conditions no issues. Put another 8 in the ls3!!!

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Boss302Guy1223: space

Its the only thing i run in my 2012 boss 302.

I have swapped all 3 vehicles to amsoil SS motor oil

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 capt. kirk: space

I would use this oil again.

this oil has been synthetic for a long time .I was just waiting for 5w-50 to come out.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 BShep: space

This is my go to product for my Boss 302!

This is the only product I trust in my 738hp 2013 Boss 302 Mustang. This is my daily driver and play toy. The signature series has great life in my supercharged application which makes the comparable pricing a bargain!

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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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 Grabber Blue Greggor: space

What the Boss has for Breakfast

My '13 Boss 302 takes an odd oil grade....5W-50...and only a few brands offer it...and when they do it's usually formulated for older Muscle cars....so it's loaded with Zinc additives...very detrimental to modern catalytic converters....plugs them up.
AMZOIL created their Signature 5W-50 specifically to address Fords running the HO versions of the newer 5.0 V-8s !
The Boss loves it for Breakfast and never Burps. Thanks AMZOIL!! Super Product!

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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Reviewed by MacGyver: space

Great oil for a great motorcycle - BMW R1200GS

Finding a rare viscosity like 5w50 in a synthetic oil is difficult. I was very glad to find it in Amsoil, a company well known and trusted for it's excellence in quality. The BMW R1200GS with it's high-compression engine, is an adventure motorcycle built to go anywhere from Siberia to the Sahara. Using Amsoil Signature Series 5w50 100% Synthetic provides improved lubrication at start-up and excellent operating protection in all temperature ranges. Because the BMW R1200GS uses a dry clutch, the options for motor oil are broader than using only motorcycle oils. Signature Series 100% Synthetic Motor Oil (AMR) is the perfect oil for my machine and will be the only oil used from this point forward. Thank you for providing shipping within Canada to avoid the hassle and expense of ordering from outside the country.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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Reviewed by Dave Scott: space

Thank you - 2014 FORD MUSTANG 5.8L

Thank you amsoil for making a 5w50 oil. Being a rare viscosity OEM's charge premium price whilst the performance is no where near premium. Now with amsoil signature series 5w50, I get better price and great performance and extended drain intervals. A true winner.

Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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Re: Thank you - 2014 FORD MUSTANG 5.8L

Thank you Dave for sharing your thoughts. Use AMSOIL 25,000-Mile Ea Oil Filter (EAO11) to take advantage of the extended drain capabilities of the oil. Replied by Tech Admin

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