Customer Ratings & Reviews

It is a great product, can do 15,000 oil changes (turbo) with 15,000 filter with superior protection at a cost less than a regular oil change. Can't beat that!!

I will be using this in my 2017 Chevy Silverado 4x4 for as long as I own it! Great product!

Great pill always looks good after extended drain intervals!!

I have used Amsoil previously on other vehicles and I currently use this oil on two different Jeeps I own.

This is used in a 2012 STi. Engine seems to like it.

Only oil I use for any engine I own. An investment worth the payout.

I've used Amsoil for over 20 years! This is by far the best oil you can buy! The warranty speaks for itself!!!!

I use this oil in my pickup

I simply use AMS OIL in all my cars and don't look elsewhere. Never had a problem, all engines work like new, no worries. You want the best, look no further.

This my first time using the oils, and I like it...I would go back to conventional oil.. Thanks AMSOL...

I use ss 5w-20 in my pickup, good startup when cold.

I run Amsoil in all our company fleet vehicles, my personal vehicles and all my race bikes. Our one panel van hit 600,000 km and still runs awesome doesn't burn oil and still shifts perfectly, I trust Amsoil for everything.

I've used AMSOIL for decades. It has saved me lots of $$$ in repairs.

I run a lot of highway miles. The truck has run smoother and is very quiet. I also notice that dry startup is much quieter. My mileage has stayed nearly the same.

Have been using Amsoil in our cars and motorcycles now for over 20 years. Top notch product at a reasonable price.

I have used AMS oil since the first oil change on my 2011 Kia Rio5 and now at 78,000 miles I believe I made the right choice. Car has never used oil even at 9000 mile oil changes. I highly recommend this product.

I've been using Amsoil for over 30 years. Love it !! I get improved MPG in all the vehicles I use it in . Great stuff , I do six thousand miles between changing. Off sets the price difference.

There is really one side effect to using the signature series oil and that is everytime I get into my car now I can't tell if it is running or not now that I changed the oil. Sometimes I get into the car while it is running and push my push button to start it and inadvertently shut it off.

Bought 2016 Silverado changed oil and filter at 3000 miles to AMSOIL changed every time the light comes on to change I know it can go longer and that's great piece of mind I'm a contractor and my load is never light but it never lets me down

I've been using this Signature Series 5w-30 for the 12 years know in the same 1997 Toyota Tacoma 4x4 and it's never ran better. The motor is still like new with 397000 km on it. I do one oil change per year and that it. I'm a probably a slightly more aggressive driver compared to most and this oil is far superior to just about anything that I've come across. I defiantly put it through its paces and its never let me down. I hate to admit this but I even got in an accident once and went to exchange drivers information with the other guy with my truck running and noticed my antifreeze had all drained out from the accident. When I tried to get back into my truck my door wouldn't open even though it was unlocked. For over a half an hour my truck was running with no coolant and no way to shut off my truck. I kept an eye on the temperature gauge the whole time I was trying to get into my truck and the temperature remained in the normal operating temperature the entire time! I thought for sure it was going to cook the engine and I was ready to smash the window open if I seen the engine temperature rising. I finally gained access inside my truck and even drove it home {about 10 km} still without any coolant and the temperature never ever did go up! I give full credit to Amsoil for saving my engine and making a motor oil like no other! That was all about 200,000 km ago.