Customer Ratings & Reviews

It's the best product I've tried on the market. I've switched exclusively to this brand's products because they consistently exceed expectations, protecting my turbo and engine.

The oil is the very best and is the only product recommended by my 2022 1100 WHP Gt500 builder. I am however disappointed that the free Detailer that was supposed to be sent with my oil was never received… and after reaching out with 2 separate emails I have never heard anything.

Have used in my 2014 truck from the beginning.

OPENED THE CONTAINER AND FOULD OIL IN THE CONTAINER. I THEN POURED THE OIL FROM THE CONTAINER INTO MY TRUCK ENGINE........ Whats to review ? its oil

In my honest opinion this is The Best oil on the market and my vehicles will never taste anything else!

I for one only use Amsoil. This is my first time using this specific one and man I feel the difference. My engine is running even smoother than before on this aggressive tune that I’m running. 100% recommended.

I wouldn’t trust anything, but Amsoil in my Land Rover or my Z06 Corvette

Switching to Amsoil Signature for my wife's 2020 Ford Explorer ST was the beat decision I could have made. Since changing, the engine is noticeable quieter. It seems to run smoother and with the extra miles I get between changes, actually makes this oil as affordable as any lesser brand. The added protection and peice of mind on a very expensive investment makes this my go to choice from now on.

Very Fast shipping rate 5/5 recommend

Change the oil in my 2025 GMC Canyon Denali noticed the difference wright of way . Engine runs quieter more pep.

Ever since using Amsoil my vehicles engines are running smoother and cleaner in the valve system.

Switch from violin to Ames all you'll love it can feel the difference in the gas pedal temperature stays cooler for some reason. I've been using Valvoline. over 30 years I switched and I love this oil

Amsoil is in all my engines - Truck,SUV, lawnmower, Snowblower 👍

Apparently ups damaged the box and returned it. Company did nothing to send me a replacement until I called them. They offered no discount or anything to make it right and now I must wait another 5 days to get the oil. Will not purchase from them again, mainly do to the poor customer service

I’ve been using AMSOIL for many years in all my vehicles and never had any problems. Highly recommended.

Have been running this oil in multiple vehicles for years. Over 500k between them all, not sure if it's the oil, but no oil leaks and not a odd noise to heard. I matched the oil with the Amsoil filter, 1yr oil changes save a lot of time when you have a bunch of vehicles to maintain.

I've been using this product for years, and every time I have done any maintenance on my vehicle l'm very impressed with the cleanliness of the internals of the engine.

Been using Amsoil products for over 25 years. Never had an issue with them, until the last couple of years. I've noticed on 7,500 mile oil change intervals that the viscosity drops out of range. 4 of my last 5 oil samples tested in 2 different vehicles have returned lower viscosity than it should be. My last sample only had 5,800 miles on it and it was lower than it should've been. Making me wonder what changed.

Great products

Been using for many years. Love the quality