Customer Ratings & Reviews

I use Amsoil in all of my vehicles and have no complaints. The oil seems to make my machines run cooler and smoother.

This works very well from a mileage and use for my car

I have been using AmsOil for about 10 years now and I have tried all the others. I am completely satisfied with all of their products. I use it in all my cars and toys.

I switched from other brands to amsoil and I haven’t looked back..

328000 miles and counting👍

Quality product

I have been using Amsoil in my cars and trucks since 1972. I have never been disappointed in any of their products. They have the best varieties and weight for any vehicle. If you want to change oil according to manufactures specs, or every 6 months or once a year Amsoil has what you need.

After watching ProjectFarm's videos on AMSOil and how it performs against its competitors, I was convinced this is THE synthetic oil to run in my truck

Put a friend's rav4 he says motor is quiet with less motor noises

First time using Signature Series. Very impressed. I noticed an immediate gain in MPG of 1 to 2 mpg. Would recommend.

The Best engine oil money can buy, in my opinion. Engine runs SMOOTH!!

BRING BACK THE GALLON CONTAINERS FOR THIS GRADE!!! Top notch oil that always gets glowing reviews from oil analysis done after every oil change at 10k-12k miles or 1 year in my 2017 Focus RS. Gallon containers have not been available for this oil grade for some time now, reason unknown?? The gallon containers are far more convenient for refilling the container for oil recycling and less waste of plastic.

The only oil I choose for my 2.0 liter eco boost motor. I have let the oil intervals go up to 11,000 miles using this stuff and still comes out brown never burnt. And oil needs to start developing a filter that can catch up to the oil lifetime! Great product nonetheless a customer for life!

I have a 2014 Lexus IS350 F-Sport. Since getting the car, I knew right off that I wanted to take good care of it. I have always wanted to try Amsoil, never pulled the trigger on it until I got the Lexus. The fuel mileage with standard synthetic motor oil was anywhere between 20-22 mile per gallon. With Amsoil, that number ranges from 24-26 mpg, depending on how heavy my foot tends to be. Not only has the mileage increased, but I felt that the engine ran smoother with Amsoil. In the past and with other vehicles, I have always noticed that cheaper oils tend to burn off and there is less in the engine than when I filled it. Not with Amsoil. On this last oil change, when I drained it, it was like every drop I added was still in the engine. Yes, that may be due to a newer and better-quality engine that I've ever had before, but I think the oil itself doesn't diminish over time. On the last change, I think I put around 16,000-17,000 miles on the oil, basically as an experiment for myself to see if it really lasts as long as they say it will. It passed my test, so this time, I'm going for 20,000 miles, or maybe 25,000. As a car guy, I like to do maintenance myself, so changing oil is fun for me, but to spend less money in the long run, and to use a better product, Amsoil is my choice. I will use it in every vehicle I get from now on.

I use this in my 2005 Ford Escape now at 265,000 miles and still going strong. I change oil yearly between 15 and 20,000 miles