Customer Ratings & Reviews

I have been using Amsoil products for over 20 years and never had any failures or related issues. For engine oil I use the Signature Series Full Synthetic 5W-30 and run it a full year which equates to 20k miles in my truck. I use the Amsoil oil filter. My friends think I am crazy for going 20k without changing the oil, but my truck now has 357k miles and never had an engine failure. I notice it does not burn oil using the synthetic compared to the dino juice. Save a little money and buy the gallons instead of quart bottles, plus there is less waste that way.

Engine runs the smoothest with Amsoil. I'll only run amsoil in my cars. Both current cars have direct injection so LSPI protection is high on my list as well. Lab results excellent.

I bought my Dodge Ram used with 35,000 miles on it. A friend of mine suggested Amsoil. Have used nothing else in it. Very pleased with performance.

Switched to this oil and oil pressure has increased in one oil change and cleaned out a lot of my engine parts with first oil change. Lubricants the top end of my engine and no more dry starts

2008 4X4 GMC Sierra 6.0 VortecMax. 129,000 miles I’ve only use this oil since first oil change. Truck was delivered with 4 miles. No engine problems. Change interval I used was 6 months or 5,000 miles.

I switched to Amsoil quite a few years ago after using multiple different top brands. I instantly noticed a difference in how smooth the motor felt in both diesel and gas motors. I would always notice some oil consumption with other brands. Since I switched to Amsoil I never have any oil consumption. The same amount of oil comes out that I put in with oil changes. Highly recommend Amsoil products.

Fast delivery and keep my motor running healthy

Probably the best oil on the market. Have better oil pressure and a quieter engine. 2009 chevrolet silverado

Excellent products! If you want your vehicle to last longer and maintain performance, use this product.

Great oil!! Definitely holds up to my lead foot. The wear protection and mileage you get out of this oil is great.

Been using the Signature series oil in my daily driver for 8 years. It really saves you money in the long run because you’re only changing your oil 15k-25k depending on conditions. Car has over 200k on it and still has plenty of power just like it did when it was new. I will always use the signature series oil.

Great product

I've been using this product since I purchased my 2016, Ram Power Wagon. Even when the dealership makes the mistake of using their oil I always thank them for the engine flush, butt use the oil I brought. Never have I had an issue with my truck while using this product, no knocks or ticks just a smooth running engine just like the first day I cranked her over back in May of 2016. My truck now has 176k miles and is still running smoothly. I recommend this product if you care about your vehicle.

Amsoil makes the very best....synthetic oil! When you pay big bucks for your performance motor, you need to protect your investment. There is no better way to do that than use Amsoil products!

270,000 klms on my 2017 hyundai Santa Fe with the GDI engine using signature series and P. I . injector cleaner. Runs like new!

It is a quality oil with the testing and science behind it. Been running AMSOIL in all my vehicles and they run great. Noticed a difference in engine cleanliness and performance.

Just started running this in my 2021 Civic Type R with 5,500 miles. After mods and tuned had to put some Amsoil in. Great stuff, thank you!

Glad to do business with amsoil

Excellent performance, great price for the value, and the engine runs better and with less effort. Truly the perfect oil for any application, sports car, truck, everyday driver, and classic.

Best oil I have ever used. # Canadian Winters