Product Reviewed: Signature Series Motor Oils
Current Rating: 4.95 out of 5 stars
Votes & Reviews: 529 vote(s) and 1218 user reviews.
Reviewed by Theodore: 
Great product, worth the cost.
Reviewed by Steven:
Great product! I use and highly recommend the signature series in my daily and my fun car! Noticeable improvement on acceleration and much cleaner and quieter engine operation!
Reviewed by Robert:
Very pleased
Reviewed by Ken:
Just what my Shelby GT350 needed.😁
Reviewed by Larry:
I use this oil in a turbo BMW as it is called for this weight. Since I like other weight oils from Amzoil, I use this in the BMW.
Reviewed by Matthew:
Used in my 2007 Ford F-150 with 220,000 miles.
Reviewed by Howard:
I have been using this this in all my vehicles since 1992. In my new cars I change to Amsoil at the first oil change. when I retired from Work Jan 2012 I was driving a Dodge Neon, 4 cyl standard shift. I drove 98 miles round trip every time I went to work. Used this Amaoil and also put Amsoil in the manual transmission. I had 160,00 miles on it when he flew to Fla from Pa to pick it up. He is still driving it. Drives up the Pa turnpike every day. He turned over 300,000 miles on it about 5 months ago. Still has the original clutch.
Reviewed by Eric:
Great stuff!! The fact that I can pair this and an Ea filter to go to 15k every change is awesome. I would and do recommend this to friends and family for its outstanding performace and reliability.
Reviewed by Dan:
Great product, use it exclusively in all my LS motors. Many of them to date have exceeded 300,000 miles
Reviewed by Dan:
Great Oil, use it in all my LS motors. Many of them have exceeded 300,000 miles already
Reviewed by Dan:
The best motor oil so far that I've used for my 2014 Honda Odyssey. The mini van runs great, engine been quite and saved on gas mileages...awesome!
Reviewed by Tim:
Good oil. Use it in my 2015 Chevrolet Silverado 2500 HD with the 6.0L V-8 and 2004 Pontiac Grand Prix GT with the 3.8L V-6.
Reviewed by Lewis:
Great oil for my vehicle engine, also OEM spec.
Reviewed by Richard:
Being the only one driving the car and rarely having someone inside as a passenger you get the feel of your car. In 2008 I bought a Pontiac Grand Prix and I went to a convention in Dallas. There was an amsoil booth there and I checked it out. I did end up spending way more money than I thought I was going to. Once I put the oil into my car and I drove to work the next day I definitely felt a whole different thing going on. It was like a smoother ride just because I guess LOL I know the engine was working smoother because of amsoil oil. if you have a car that will monitor your oil and suggest when you should change it you will notice that it will go longer with amsoil I didn't have a car for 5 years because I was out of the country but once I came back and I got another car, the first thing I did was order amsoil oil and change the oil in this car. it's not expensive you break down the cost of your engine problems it's always comes out cheaper to have amsoil oil in your engine. I am definitely one of those people if something doesn't work I'm not going to use it and I will tell people don't use it.
Reviewed by Steven:
Is there something proven better to use? I researched before first purchasing this oil for nearly 13 years in the same 2002 Ford F150. Use the Amsoil filter to
trap more contaminants that occur over time as well. The vehicle has less than 29Kmi on the odometer. My most recent oil change had less than 850 miles over a 13 month period.
It's perfect for preserving and extending the life of any engine and with my truck this oil is an absolute.
Reviewed by Scott:
The perfect oil for my 2019 Chevrolet cruze.
It keeps all moving parts, moving.
I highly recommend this oil.
Reviewed by Robert:
I won't use any other oil
Reviewed by Patrick:
The best motor oil money can buy!
Reviewed by Scott:
I only use amsoil for my vehicles. 13 years and 250,000 miles later still running smooth. Thank you
Reviewed by William:
Having been a user of AMSOIL products since the early 1970s I am pleased to say I recently switched over my 2003 Toyota Tacoma with 253,000 miles on it and my 2006 Toyota 4Runner with 168,000 miles on it. After almost three months since I changed the oil there have been no oil leaks or excess using of oil and the engines run just fine.
Reviewed by James:
Lower friction less emisions better gas mileage mostly to keep the envestment like new
Reviewed by Brandon:
I have been using this oil for a few years in my vehicles and am completely satisfied with it's performance. I get a lot more miles between oil changes and it looks almost as clean coming out as it did going in, not all black and nasty like conventional oils. I always use the Amsoil oil filter as well which helps keep the oil filtered and in good condition.
Reviewed by Andrew:
A Great Product!
Reviewed by
Oleh:
Good only for 10 000 km
Reviewed by Forrest:
I use this oil in a Pontiac Bonneville GXP with the Cadillac North Star engine. The car has about 80K miles and uses about one quart in about 7k miles
Reviewed by Merlin:
Been using Amzoil since 1977. Presently have a 2009 Camry Hybrid with 197K miles. Runs great--averages about 40mpg on highway and no oil consumption. Great oil!!!
Reviewed by Philip:
I've used this product and love. I have Amsoil in all od my units
Reviewed by Dan:
19 ram 5.7 hemI , bought 2 1gal cases so I'm set for a while. I use amsoil in my 08 Z06, 14 glk250 11 A3 and now the 19 ram.So whether it's a turbo blower or nat.aspirated they are the best.
Reviewed by Roy:
The best motor oil you can by hands down. Check out the oil analysis on-line. I went 19k miles on my Prius and oil analysis said that I could go on up to 22k without any issues. This was and independent oil lab.
Reviewed by Bob:
Ams oil is the finest oil and thats all I use and try to tell everyone. Better pressure cold and hot!
Reviewed by Sam:
Been "my own" mechanic and all about repairman all my life. Did much of my own maintenance and repair work on mine ... and families automobiles for years. Since being disabled in 2008 with medical conditions that limit me now to very little physical work, I looked for the best lubrication I could find. After much research and even with help from qualified "lubrication expert chemical engineer" I knew from my work days , I confirmed there is no better quality lubrication than Amsoil products. I use the Amsoil motor oil for two reasons. #1 It is the best motor oil on the planet - hands down with intense research to verify. #2 I use it because in my physical condition and being unable to change my own oil like I used to , I use the Amsoil because of its long lasting quality that allows me to confidently go with long intervals between changes.
Reviewed by David:
I use the signature series on both my cars and one is a 1999 volvo s80 and still running great.
Reviewed by John:
I changed my 2014 Infiniti QX60 over to 100% AMSOIL products. I won't look back.
Reviewed by Ricardo:
Great oil, would not change for a different brand.
Reviewed by Gary:
Been using Amsoil Signature Oil for over 10 yeas. From the purchase process to the application and performance...Amsoil is 1st Class!
Reviewed by Jeremy:
use this oil in my wifes 2014 dodge charger 3.6 great oil
Reviewed by Eric:
Love the extended change. 100000 so far on the car and the engine runs perfect does not use a drop of oil.
Reviewed by ELIS:
I have tried many products in my lifetime trying to protect my investments from friction damage. I purchased a new 2002 1500 Chevy Suburban LS with a 5.3 liter engine and tow package. Was using a competitors synthetic oil and was very satisfied with the product. All the ticks and clicks that bother me were gone and the smooth running engine was great. The problem with the oil was that it was hard to come by locally and when it could be found it was very expensive and the wrong viscosity. I had to resort to ordering on line in five gallon containers and found that the oil was burning off about one quart every 15,000 miles due to heat. Specs. on the product indicated it could handle the heat but apparently it could not.
An offer for an AMZOIL Preferred Customer came to me via e-mail so took advantage of the offer and ordered oil filter. Changed oil and filter using your products, started the vehicle and did
not notice any difference but the more I drove the smoother the engine became. I could not believe the difference, so since then I only purchase AMZOIL products and will never put another product in any of my vehicles. AMZOIL is the best!
Reviewed by James:
GOOD PRODUCT BUT GETTING TOO HIGH PRICED.
Reviewed by Rick:
As advertised fast home delivery
Reviewed by Mike:
Toyota Tundra 2016 engine warm up not too much engine vibration when driving it very smooth ride!
Reviewed by Lloyd:
Used on my 2008 Toyota Tundra, great product and smooth running, motor runs quiet and cooler... Excellent.
Reviewed by Michael:
Great product! I use it in my 2014 Jeep Grand Cherokee with 92,000 + miles and it runs better than when it was new. Using the Signature XL 05W20 (6-quarts). I have 6000+ miles with ZERO oil consumption and it runs glass smooth. I LOVE all Amsoil Products!!
Reviewed by Danny:
Use this oil for my 2018 camaro!
Reviewed by Albert:
Been using Amsoil for YEARS. All my cars have gone over 200,000mi and NEVER used a drop of oil!!!
Reviewed by Arthur:
Awesome product ! Decreased the engine temperature by 12-15 degrees! Will ALWAYS purchase this oil for my supercharged truck!
Reviewed by Hugo:
Thanks Quick delivery
Reviewed by Mike:
You're product s are great
Reviewed by Chad:
I run Amsoil in everything I own, from my Duramax to my ATVs. it has never let me down.
Reviewed by Robert:
I only run Amsoil in my vehicles. I have never had a failure due to oil-related parts! Amsoil is the best protection. I've been using it for about 30 years now in all of my vehicles.
Reviewed by Barry:
Aaaaaa+++
Reviewed by Leonard:
New to the 0 - 20 My Subaru calls for it. Should be good as all the other Amsoil products I use.
Reviewed by Russ:
We have a fleet of trucks in our construction business and wouldn't think about using any other oil.
Reviewed by Larry:
I have a 2003 S10 Xtreme pickup with the 4.3 V6 engine that is driven two to 3 thousand miles a year. Need a top quality oil that will be changed once every year. Amsoil Signature fits that need.
Reviewed by Larry:
This Amsoil 5W-30 Signature oil is going in a 1996 Impala SS collector car that has under 20,000 miles and sometimes will sit for two weeks before being cranked and driven long enough to keeps things working good. Better to have a top quality oil is that type of vehicle.
Reviewed by Robert:
I use this in a 2013 Toyota Prius and it is great. Best oil on the market.
Reviewed by Chester:
Great product will always use . Don't understand but cars just seem to run better . Enough Said
Reviewed by Kevin:
Works like it should
Reviewed
by Richard:
in my 2018 Triumph Motorcycle
Reviewed by Clint:
I use this in my truck and my boys truck. I trust its longevity. I wish the price was better.
Reviewed by Harvey:
I have used amsoil scene 1970 never lost a motor trany or rear end with amsoil and I driven them hard raced it dragracing and rounded rounder now I have a ffg fleet of Van's running 350000 miles a year and change it every 35000
Reviewed by Logan:
Perfect
Reviewed by Richard:
I tell people just try it and you'll see how well it protects your engines. I use it in my vehicles and my personal vehicle a 2014 Expedition has 76000 miles and doesn't use a drop of oil between oil changes once a year, about 18,000 miles. How can you not use a product that keeps you vehicle running great. My family has been using this oil for a long time and a wide range of vehicles. 2018 Shelby 350GT, the Expedition, 2000 Mustang V6, GMC 4 cylinder with over 122000 miles, boats I used to own. If it used oil I put the signature oil in it. Including my Toro zero turn that I have been using for 12 years and it still uses no oil between oil changes once a year.
Reviewed by Richard:
I tell people just try it and you'll see how well it protects your engines. I use it in my vehicles and my personal vehicle a 2014 Expedition has 76000 miles and doesn't use a drop of oil between oil changes once a year, about 18,000 miles. How can you not use a product that keeps you vehicle running great. My family has been using this oil for a long time and a wide range of vehicles. 2018 Shelby 350GT, the Expedition, 2000 Mustang V6, GMC 4 cylinder with over 122000 miles, boats I used to own. If it used oil I put the signature oil in it. Including my Toro zero turn that I have been using for 12 years and it still uses no oil between oil changes once a year.
Reviewed by Roberto:
Worth the money
Reviewed by Jim:
Excellent Product !!! get great fuel economy
Reviewed by Lawrence:
Use this oil in my Ford Flex, I have always used Amsoil and am very very happy with its performance. Great product.
Reviewed by Joshua:
It is a great product that is working real well in my truck
Reviewed by Dale:
Always good
Reviewed by Joe:
I have used Amsoil for many years with nothing but the best performance of all my vehicles. Thank you, Amsoil.
Reviewed by Matt:
Best oil I have use for my car and the last brand i will ever use
Reviewed by Trevor:
Best oil you can run. Period!
Reviewed by Anthony:
best oil on the market
Reviewed by Ang:
Best product
Reviewed by Kandy:
Need this for my Toyota, I commute for work and this is a better price product for the amount of mileage it is good for.
Reviewed by Michael:
I use the Signature series oil in a broad range of vehicles, from my 04 Titan to a 2018 Chevy cruise. I love the extended change intervals and the security of knowing that my vehicle is protected. You cannot beat the customer service either.
Reviewed by Jeffrey:
Great products as always from Amsoil.
Reviewed by Charlie:
Great product.
Reviewed by Ronald:
Great oil for mail Jeep
Reviewed by Jeff:
Great oil! Stays cleaner and our cars run smoother with a lot less top ups like the extended drain intervals!
Reviewed by Max:
The Best oil, period!
Reviewed by Cody:
Makes my car happy
Reviewed by John:
Good Stuff
Reviewed by Juan:
Outstanding
Reviewed by Todd:
Simply the best. On every daily driven car that comes through my shop.
Reviewed by Rick:
Used this in my 2019 Tundra
Reviewed by Hubert:
Have used this oil for many years and love the fact it keeps my engine system clean and that only have to change every 25,000 miles. I use nothing but Amsoil in all my engines. My kids use nothing but Amsoil products in all their engines, vehicles and small engines.
Reviewed by Gary:
Have been using Amsoil 5W-30 motor oil in my 2008 H3 Hummer since new. Great product! Absolutely no issues and the extended oil change intervals are a big plus to me.
Reviewed by Enrique:
You cant really tell the difference between having your oil changed Religiously and putting amsoil to be honest, I mean your car will respond just as well, but the fact knowing that amsoil is up to 4X better than conventional synthetic oils, is a big peace of mine for me
Reviewed by Shaun:
There is nothing better made. Top of the line!
Reviewed
by John:
Great product!
Reviewed by Stanley:
Same amount of money as 2 oil changes but better quality
Reviewed by Reginald:
Good
Reviewed by John:
Use this in my Jaguar. Outstanding!
Reviewed by Jerry:
Didn't believe in magic until I used this oil in my vehicle.
Reviewed by Ricky:
I run this in my ecoboost explorer. Makes motor sound smooth and quite
Reviewed by John:
I've been using 0w20 and other amsoil products for decades and wouldn't trust any other oils in my cars or equipment
Reviewed by Moto
Mike:
Once a year oil change and I'm sold. I tow a 7X16 cargo trailer 50% of the miles I put on. I put the proven best oil in and only crawl under the truck annually now. No oil loss with 160K on the truck.
Reviewed by Charlie:
I have always used synthetic oil in my vehicles and used Amsoil in the past. When I found I could be a preferred customer I was very pleased to begin using it again.
Canada
United States
I won't buy anything else
I've been using Amsoil Signature series for over a year now. Won't use anything else in my vehicles!