Customer Ratings & Reviews

Great product and fast shipping, nothing compares to the quality of amsoil!

I have been using 0w40 in my ram 6.4 gas enegine since new. Currently 67,000 miles and no hemi tick. Fingers crossed this helps prevent premature failure.

I've been using this oil in my 2002 porsche for the past 5 years engine runs super smooth and has more power. Since then I've changed all the oils in my cars to amsoil.

Merveilleux , mon moteur est heureux !!!!

Best oil on the market

I had a noticeable amount of noise on start up with the factory oil after changing the oil using amsoil signature series 5w30 it reduced the noise by 75%

Amsoil products protect and keep my engine running good!

I saved money by ordering by gallon instead of quarts.

Amsoil fan

I love the protection it provides and it lasts longer then regular oil. Extends the oil change times.

This is the only oil I use in my ‘06 Jeep TJ. It’s the best oil out there in my opinion.

Signature Series is the crème de la crème of amsoils line. I run it in the wife’s Ecoboost explorer and it’s phenomenal. We have had several oil samples before and after switching to this oil and the samples since running this oil are always in the green. It’s cleaned in the inside right out with their detergents and I feel great knowing at least on the oil end of things were doing it right.

I’ve started using AMSoil for 30+ years ago and I haven’t regretted that decision for a single second. Also as a preferred customer (and the associated cost) it’s even cheaper than buying any other full synthetic brand in a store. On top of that, when you buy in bulk it ships to your front door for free. The protection and longevity of this oil is a win win win!

It is hard to believe in a 1 year/25k mile change interval, but it is real! I kept checking my oil the first year to see if it needed changing and it was fine even at the one year mark with 18k miles. I changed it then, but it still looked fine! 10 years later my vehicle is over 200k miles without any engine issues at all. I also flushed the transmission with OE at 110k miles and no problems with the trans either! I am sure my power train will outlast the body. Maybe Amsoil makes rust inhibitors? I'm going to check right now!

I've used lots of different oil over the years but this is the best I have found.

It's oil what can you say! I have used this from the first oil changes in my Fusion Sport and F150 2017 & 2016 I have had no engine problems at all (Shocking) won't say it's only because of oil but I know this stuff is good and will continue to use it. I go 10k max and change the oil and from the looks of it I could go further but wont...

There’s Mobil 1, which is very good and then AMSOIL! I always have a sense of relief after an oil hand on the Vette and Land Rover.

Great oil at a high price. If you love your vehicle, amsoil is where it's at.

First in synthetic since 1971, I wouldn’t use anything else. I have Amsoil in every place I can put it in my vehicles, lawn mowers, 2 stroke weed whippers, you name it.

Like the title said, best oil I've tried in my car thus far. Used to use Castrol Edge high mileage oil, which did do a good job, or what I thought was a good job anyway. The engine seems to be getting smoother the more I drive it, probably getting cleaned out (it has around 300,000 miles, I'd be surprised if it was perfectly clean, even after using this oil). I chose this one cause after reading up on the different oils amsoil has, it seems that this does what the high mileage oil does and then some, hopefully will help those who may be confused like I was at first.