Customer Ratings & Reviews

It's the best oil you can buy!

AMSOIL has proven to me over the past 20 years that it has improved the performance and mileage of over 8 vehicles and my motorcycle! I will never use another oil!😎👍👍

Have been using for years. The best.

Went to 7500 on my oil change and it was still clean! It was brown but not cloudy and dirty. Shocked.

Been using Amsoil for years on my Q50 and don’t have any issues or problems with my engine👍

I've used Signature 5-W20 oil in my 2015 Jeep Wrangler since it was new and just turned 70K miles. Others I've known have had their engines overhauled at least once while using assorted brands and kinds of oil. My only modification was to install a Baxter oil filter adapter to limit the dry start that's famous for damaging Jeep 3.6 engines.

I have been using the signature series and all my cars for years. Three cars pushing 200,000 miles.

Amsoil is the only automotive motor oil product I use on my vehicles. The extended service interval and high quality product keeps my vehicles' engines running smooth and trouble-free. I have been using Amsoil products for about 20 years. The customer service and value is second to none!

Works much better than OEM.

First time using this product and I'll never go back to anything else ever again

Only oil I use in my wife's Equinox....Have used it for years with zero problems.

Only oil I use in my Colorado! I have been a customer and user for years and zero problems!

Amazing product, I run in all of my vehicles. Improved mpg’s noted as well.

Oil definitely quiets the engine down. AMSOIL is the way to go if you’re shooting for reliability and longevity out of your engine.

Excellent motor oil.

Really good oil, I recommend it to everyone, and it's fast shipping to.

I'm loving amsoil's product, it is really good stuff. My only concern is as always the shipping cost if purchasing for less than 130$ CAD other than that it is great service and fast shipping to.

I use Amsoil because it is the best oil on the market

Great oil. I’ve been using Amsoil since the 80s. My Honda Civic has 55,000 miles on it and runs as good as the day I drove it off the dealership lot. My 1992 Toyota Pickup uses 10W30 and has 550,000 miles on it. I have a bypass filter on this truck. Still trucking along good. The engine will never break down. Amsoil is the best. There was a mix up with my order which was my fault. So I had to place two orders. Amsoil reimbursed me for the second shipping charge. Just a great company who really cares about their customers.

Maybe this oil is more than we need in our Tacoma but for me it has always performed better than the rest. We stuck with Toyota's 0w20 Synthetic for the first couple oil changes and on the 3rd went to old faithful Signature Series and the difference was noticeable right out of the gate. Will SS completely change your engine performance probably not but in my opinion it will run smoother and allow it to operate at its peak potential. There are other good oils out there but for me Amsoil SS is the one I use and trust the most.