Customer Ratings & Reviews

I did all kinds of research into finding the best oil for my 4Runner. Out of all the torture tests I’ve seen Amsoil kills the competition! Do you pay a little more? Yes but it will be well worth for the life of an engine

La meilleur huile que j`ai utilisé en ce moment , bonne réponse du moteur , j`ai l`impression de libéré la puissance a tous les jours . Vraiment la meilleur huile synthétique que je recommande grandement !!!!

Works great in lawn mower, i don't know that my mower runs cooler or smoother but I've ran amsoil for years in other things and noticed things like operating temperature being decreased and other things so may as well trust it in the mower to.

Only oil I trust to go a year between changes.

Used signature series motor oil for 15 plus years. Vehicle runs cooler, and I average about one mile more per gallon. Worked well for over 250,000 miles on Nissan Maxima, Honda CRV and Toyota Avalon. Never had an issue.

I ordered a case of Signature Series 0W-20 Synthetic Motor Oil and when it arrived, it was short one gallon. There may be a delivery truck out there running high grade motor oil. I called Jason and told him what happened and they got me another gallon out ASAP. The oil is in the vehicles and so far so good. If it's as good as the service, I'm set...

Just watch YouTube and learn why this oil is the best

The only oil I can find that is full synthetic AND meets KIA's turbo- direct injection standards PLUS has a warranty to boot! All I use.

Used Amsoil on my old truck that still run strong when I sold it with over 240000 miles on it so I'm started using it on my new F350 starting at 3000 miles on it.

I use it in one of my high horsepower LS3 engines that I have built. It nears 600 na horsepower at the crank and 500 rwhp, and it is a daily driver. Only thing I trust is the 5W30 Signature Series.

I have been using Amsoil for several years. I can tell that my car engine runs quite and smooth. I like the longevity of the oil. I usually change the oil once every 10,000-15,000 miles. It saves you money and time

I love this oil! I have an oil catch can to catch the sludge buildup and it hasnt catched any. I've been using this oil for about i'd say 3 oil changes since I switched from Mobil 1. Never going to any other oil. Superior protection, cleaner engine, better gas mileage...best oil ever! Amsoil is the way to go!

Great

I've heard from too many mechanics and truck drivers how much longer engines last with amsoil synthetics. I don't drive much so one oil change a year with a filter change in 6 months is all I need.

I've been an AmsOil customer for probably 15 years. I've use AmsOil products in my Surburbans, Avalons, motor cycles, and small engines. Pre-pandemic I used to be a 10-14k/year driver for both vehicles. Consequently, I'm a once-per-year oil changer. Granted, the Sub takes 8.5 qts and the Avalon requires 6.5 qts. I've NEVER worried about lubrication issues with AmsOil products. I sold an Avalon after 207k miles with ZERO additions between annual oil changes. The Chevy's are maybe 1/2 quart between changes, but I pull a boat to Canada at least 1x/year so that's to be expected. Although purchase price is a bit more than other products, long term costs are less $$ due to the longer change intervals. When I bought my Yamaha FJR1300 motorcycle, the previous owner had AmsOil on the shop shelf which made me more confident in my purchase, even though it had 36k miles. It's a no-brainer.

Best oil especially for my older toyota vehicles.

I thought it was a great product

I’ve run it in my last 3 cars almost a million miles, Not one oil related problem, At 25000 oil change intervals

Used in all vehicles, oil chgd once a year or every 15k. No minor or major engine repairs, vehicles can and have exceeded 325k

Best oil I have ever used. My twin turbo engine runs smoother than with the other the brand I was using. Also, I had a great experience with their customer service. Great product and service. Customer for life.