Customer Ratings & Reviews

I have used OW-20 Signature Series oil in my truck ever since I purchased my Truck back in 2014. That oil has never failed me. Every time I change at 15k intervals, it continues to look like new still. I wish someone turned me onto Amsoil years ago.

Wonderful

Best oil out there period, viscosity holds up the best of all the other synthetics

Saving money is making money at only needing one oil change per year. Plus the added performance is noted especially in MPG.

Good product, drastically overpriced.

I have friends who have used nothing but AMSOIL products in their vehicles and have gotten hundreds of thousands of miles out of them. This is the first vehicle I've owned where I have started with the oil and air filters from brand new. When I get more miles on my truck, I plan to replace all of the fluids with AMSOIL products - transfer case, transmission, etc. It's a little pricey, but it's actually saving me money when I only have to change the oil at 25,000 miles. When I place my order, it's been pretty incredible that a box arrives at my door the very next day!

The best product from the best people. What else is there to say?

As soon as I paid off my Lexus 2012 350RX,I stopped taking my car to the dealer for maintenance, but also I wanted to make sure that I'm getting the best protection for this engine, I've been using Amsoil in a 1998 Mitsubishi Montero sport and had no problems at all with internal parts in that engine, so it was a no breading to keep on using Amsoil in this Lexus, great product, I believe in good maintenance better that repairs, and this product hasn't let me down.

Been using this in my 2015 Kia and running it for 25,000 miles between changes. Oil doesn’t look bad at change and that assures me it’s doing the job.

Awesome oil! Works well in my Honda Pilot. Saves me money and low miles = one change a year. If you gonna do it…do it right!

Great oil, I trust it

Only oil that I have found that helps with gas mileage.

This is the best oil out there!!! My truck runs smoother and much quieter also!!

Perfect OEM replacement

Switched to this in my 14 Outback which used 0w20 and burned a quart every 2000 miles since new. I was running 15w40 but mpg suffered and with the rising price of fuel, went with a zero weight oil. No more burning and better mpg

I have been using Amsoil since 1975 - never had any problems with any of my vehicles.

Amsoil was highly recommended by a good friend and mechanic. I now use it in my truck car and motor cycle.

Love Amsoil Products, they provide nothing but the best for your engine. No one I trust better after reading their reviews and most impressed by the independent testing they do on all their products. The Signature Series is probably their most tested and proven products, rest assured you are use the best the industry has to offer!

Helps prevent buildup on intake valves in Cadillac SRX. Nice quiet engines in our 5 Cadillacs 1959-2016, 95 Towncar and 2003 Silverado.

Been using this oil in my ‘18 Chevy Malibu since 15k miles and the car now has over 95k and the engine still runs like new. Definitely cheap and worthwhile insurance for anyone looking to maintain their engine for a long time.