Customer Ratings & Reviews

I like the longer intervals between oil changes.

I've tried many engine oils and additives, amsoil is the greatest. The oil has has viscosity from the beginning to end. Keep that in mind I'm using this oil mixed with Euro amsoil for BMW X5 4 quarts of signature and 3 of European. Works the best has best of both worlds.

Awesome oil you don't have to change it as often and very high quality proven to last longer 25000 miles or year better then other oil brands and also for temperature stats this oil can withstand some heat keeps the oil from thinning out so much so thank you for the name brand that Iam happy to put your stickers and decals on my car.

By far best oil out there

I have been using this oil and its appropriately weighted siblings in all my vehicles for over 15 years, with few exceptions in between. I adhere to 10k mile change intervals. I always found a smoother running engine and far less oil consumption when switching to this oil after buying pre-owned vehicle. Even my GM 8100 in my Suburban uses less than half the oil it used to when I first got it. This at 175kmiles. I had partial engine failure due to lack of lubrication in a 07 5.3l GM V8 with Cylinder shutoff system. But as I found out, it was due to cracked heads that introduced coolant to the oil, slowly and sneakily, ruining the lifter mechanism and got the camshaft to a state where it was just still ok, but not beautiful. But that's certainly not the oils fault. I do recommend this oil to all that keep their cars and trucks for along time and are hoping for extended longevity in their engines.

This is the best oil out there and the only product I use for my Toyota FJ CRUISER Would definitely recommend it ..!

AMSOIL motor oil’s are the best choice for your car period no other oil protects your engine like AMSOIL!!

Product speaks for itself. Just try it. Used Amsoil in my ninja 650 and finally decided to try it in my newer Toyota 4Runner. Shifts are seamless and it’s amazing to feel the difference

I use this as a summer weight oil in my tacoma, it works perfectly. I have been running amsoil for years in my Toyota trucks and they keep going strong.

Greatest syn I have ever used

Works to protect at 0* and 95* I can depend on it always

My decision to switch to Amsoil 5W30 in my 1999 Chevy/5.7L made my engine as quiet as can be. Highly recommended!!

I can always teust Amsoil to protect my engines.

Amsoil products are all I care to use.

Have used this product for several years still working great

Much better product than any other I have bought.

Change on my 2015 Mustang. Changed at 8,000 miles, oil looked almost as good as the day I poured it in!!!

My RAM takes 5-20 but being an old hot rodder I decided to try a lower viscosity in the winter to see what, if any, difference it made. I know it's a little better flowing on cold starts but was worried about engine protection. My oil pressure was normal and my engine wasn't a bit noisy so I ran it until the weather started warming up here in Va. I am beginning to believe that ANBY Amsoil is great!

Great oil and delivery

My uncle has over 500000 miles original engine on his Tundra, the same results I seen from my customers who used AMSOIL on their vehicles when I was a auto tech. I started my Toyota Sienna SE on signature series full synthetic, I noticed results right away, smoother running. With perfect preventative maintenance and amsoil I plan on taking my Sienna over 500000. Starting my brand new Camry on AMSOIL right away.