Customer Ratings & Reviews

I’ve used this product for 40 years without fail. I have a couple of high compression motors that I want to be sure gets the proper lubrication. This oil never fails. both engines run well and never overheats, or seem like they’re straining. fast customer service from Amsoil as well.

Well worth the investment. Best performance oil in the business.

i got this based on all the reviews and claims that its the best. i saw it win a pour out race at -30degrees on youtube against another brand haha

We did the first (10,000km) oil change on our new Subaru Forester. To my surprise, immediately subsequent to the change, the fuel consumption dropped from 7.8 l/100km to 7.2 l/100km. The savings in fuel costs will offset the premium paid for Amsoil.

Great stuff!

I was turned on by Amsoil ever since I went to SEMA 2024 and had the opportunity to speak with an Amsoil representative. I forgot the lady's name but she was helpful, answered my questions, and very nice. When I went to the Amsoil website, I was taken back by all the products available, and the fleet management system on the site. I was sold, I bought several kits for my vehicles, and will continue using the products. Thank you Amsoil. You're the greatest.

Great Service. I love the convenience of working with you guys.

I have been using Amsoil for 5 years now in my motor home. I am 100% satisfied .

Helped with the eco boost cold start cam phaser rattle and making it virtually vanish.

I have used Amsoil for years, my vehicles run fine. I would not use anything else. My last order was the first time, I have ever had a problem. Items were damaged in transit and Amsoil made it right and sent out replacement product right away.

I have been using Amsoil products for years. The originators of synthetic oils. They seem to always come out on top of all the testing of the other top motor oils and automotive products. I use Amsoil exclusively for all of my equipment that use oil. I am particularly fond of the signature series oil for our daily drivers.

I can tell a difference at first start up. The best I’ve ever used. I used this oil for 125k miles on my last truck. I now use it on my new one also. Thank you Amsoil

Have used Amsoil since purchasing this Ram 1500 new in 2017. No regrets and no issues with truck

J’utilise amsoil dans tous mes véhicules

I have been using Amsoil for many years. I started using it in my motorcycle because of the way it handles the heat of an air cooled engine. Now I use it in everything I own that has a piston and a crankshaft. I use the 10w/30 signature series in my 1985 GMC K15 that I have owned for 35 years. I wouldn’t use anything else in it.

...since Signature Series started with 0-30, in my 03 Grand Marquis without any hiccups and lots of carefree miles knowing I've got the best protection money can buy. I've actually switched all of my other vehicles to Sig.Series oils, with the same results. Hopefully Amsoil continues to uphold their quality products until EV's are the only vehicles running the roads of our great country. Sometime after I'm gone!!!

If you check any website, expert, etc, you will find that AMSOIL is the best oil. There is a noticeable difference in how all my cars behaved since I switched over. It’s worth the cost.

The use of Signature series 5w-30 in my 2020 Ford Ranger has made a huge difference in terms acceleration; and runs smoother overall. Can’t wait to see the difference in subzero temperatures.

Has brought my oil pressure up and has quited the engine down on start up. Haven't driven a lot of miles yet but all is good.

I’m new to Amsoil and I’m hooked. The product arrived early and was packaged nicely. I’ve been checking my oil every week and the oil is much cleaner than the mobile one I used in the past. I’m switching all of my oil; transmission, front and rear differentials, over to Amsoil.