Customer Ratings & Reviews

I have been using Amsoil signature series in my 2014 Jeep Wrangler Unlimited since 2015. It has had no engine problems to date and is approaching 200,000 miles. Many trips pulling a 7' x 12' enclosed trailer. I am very pleased with its performance.

Love the customer service and speedy shipping

Amsoil user for 20+ years. No engine problems ever with 25,000 mile or 1 year oil change intervals.

When I was a kid, I would help my dad change the oil in his work truck and he used AMSOIL and taught me at a young age that changing your motor every 3000 miles will make your vehicle last. Now it is easier because oil last to 10000 miles. Thank you AMSOIL!

Consistency, is the key. Always quality lubricants for extreme heat and cold weather. From south Texas to northern Wisconsin: there is nothing better

Use Amsoil signature series in our vehicles for years.

I like the choice of products and I notice this oil made the engine run smoother

I swear by this product for years, it is the best don’t use nothing else because it’s definitely what the company say it is. I told my mechanic, he knew about it but they don’t sell in the stores. After rebuilding my motor using the products he became a dealer.

Been using this in my RAM 2500 6.4l for a while now. The Ram seems to love it compared to the Pennzoil they recommend

Best oil for your car or truck. It keeps the engine clean and it looks like new inside very good product

Never been disappointed by this product and I use it for almost 10 years now BEST Oil

Good oil but taste like crap

I’ve been using Amsoil for 10 years now, I’ve had two trucks now over 100k miles with zero issues and that’s going 25k miles between oil changes, first truck had a 5.7 hemi and those are notorious for lifter tick, zero issues, current truck is f150 with the 2.7, again zero issues, this is truly an amazing oil

if you want the best protection for your motor stay with Amo synthetic

I have a FBO 2019 civic hatch. Even though oem spec is 0w-20 I switched to this since I’m in Florida and pushing more power than stock. This stuff is amazing, When I switched years ago from oem I felt the difference on the very first drive. Will forever use Amsoil SS oil in every vehicle I own!

Many years ago I tried Quaker State and Pennzoil once. Was using Valvoline and came across Lucas Oil Products. I thought that there has to be a better way than combining the Valvoline and Lucas Oil Products when doing an oil change. Was in a Local Auto Parts Store and came across Amsoil. Been a good 20+ years now that I have consistently used just the Amsoil oil. When Amsoil came out with the Signature Series I started using that and always do to this day. My car is a 2003. Since using Amsoil Oil the fluid level on the dipstick has not ever varied. Amsoil is also in my Differentials and in the Same Factory Transmission since 2003. Here we do have the Hot Summers and the Cold Winters. Like it or not here even being on the Highway is more-often-than-not, often stop and go just like being on the surface streets. That is why I have Amsoil fluids in my car purposely when driving is not always smooth steady driving. Thank You. Differential fluid is always right where it was when it was changed and needs to be. Transmission fluid on a very Hot and Humid Day with some Highway and Unfortunately some stop and go city construction driving is right where it should be RIGHT AT FULL HOT. No deviation. Oil Cold is right at the Full mark where it should be and stays.

I use this Signature Series 0W-16 oil in my Kia Niro hybrid car because it's the best available. A fast flowing oil is needed for hybrids with the gas engine kicking in and out. My only complaint is that it is not yet available in a one gallon jug. I prefer gallon jugs as both my cars take four quarts during an oil change.

Love the oil, helps engine run smooth.

Consistently proven the best synthetic lubricants.

Got a new to me Ram 2500 and everyone recommended AMSOIL. Went with it and it increased my fuel mileage by about 3 mpg and have had zero issues.