Customer Ratings & Reviews

my first year using Amsoil products in my car and small engines. so far I cant complaint .I really notice the difference and will continue to use Amsoil products.

This is the oil I use and trust in my 2019 Dodge Durango 3.6L. I never reach the 25K mileage, but I do change it at 1-year intervals. Hopefully, in the coming year, I'll be able to put more mileage on the Durango.

Oil keeps my engine clean inside even with 25,000 mile oil changes. At 17,000, the oil looks extremely clean on the dipstick and wiping cloth.

There's a reason car/racing enthusiasts use Amsoil. It's the best protection you can buy for your car. 6K change intervals drive the benefit home for me; with other synthetics I was changing every 3K no matter what the recommendation. Amsoil Signature Series gives me the confidence to run up to 6K miles in between oil changes, and my motor is happy as can be.

I changed the oil in my 2004 Mach I Mustang from the manufacture's suggested brand to Amsoil Synthetic 5W20 SS. The first thing I noticed was the smoother engine idle. Also, during gear shifts at slow speed, there is a noticeable improvement in the engine's response. I did not put the car on a dyno to check before and after HP and torque, but it feels as though it has more torque with Amsoil. I will stick with Amsoil.

Started utilizing the Sgnature Series Oil in my wifes 2014 Hyundai Tucson and I have noticed a big difference on how her vehicle start up; especially on cold mornings. The Hyundai is getting better gas mileage and I definitely would recommend this product.

I've been using Amsoil products for a long time now. They're great products and with the extended drain intervals it really is cost effective to use this over conventional oils.

I use this oil in my car and truck's. I have been using AMSOIL in my vehicle's for many years now with confidence as AMSOIL is the best there is.

Best oil on the market, don’t settle for less

Really good stuff! Pulled the first batch at 3K as it had gotten very dirty. Analysis showed that it was picking up residual dirt left behind previously but was well within silica limits. Really good stuff and will continue to use it!!!

Been running this in my silverado 2500HD 6.0L with 182,000 MI now and change once a year with roughly 5000-8000 MI. On oil. Doesn't burn or leak anything. I even use it in my transfer case which gets changed every oil change. Eliminated the vibration I was getting. Amsoil all the way! Hoorah!

I've been using this in my 2016 Silverado 1500 for many years now. Just recently, last 2 years, I decided to see how far I could push it on milage/time between changes. I had it tested at 6, 12 and 18,000 miles, and even at 18,000 the oil tested well within limits. I used to change my oil every 6,000 miles, and even with the added cost of this signature oil and the extended drain interval AMSOIL filter I'm saving money. I only needed to be able to go every 12,000 miles and I'm changing at 18,000. Really happy with all AMSOIL products, oil, lubes/grease, cleaners and fuel additives. I'd rather pay a little more up front for a quality product and have my tool/vehicle/whatever work the way I need it to when I need it to then save a couple bucks on oil changes.

I've been a loyal amsoil user from 1975 This oil far exceeds all requirements for my Toyota even double the change interval plus some. 100% confident!

I have only used Amsoil Signature 0W-20 Synthetic to keep my 2013 Subaru 2.5L flat 4 cyl. like new. It runs better than new with almost 70,000 miles. Absolutely no engine issues, ever. The Signature Syn. keeps the engine internals spotless. This Amsoil product meets or exceeds API standards.

This is forever be the only oil i use.... Everytime I change my oil my oil looks perfectly good

Hands down superior oil, treat your vehicle good and they will treat you better.