Customer Ratings & Reviews

I have had my car for 12 years and put 220k miles on it. I have also sent my used oil to a lab for analysis in between my oil changes. When I was at 200k miles I had to move a lot for my job and couldn’t find Amsoil so I used a different brand synthetic. Before I did that, even at 200k miles my car had no oil seeping from anywhere. You could eat off of the block. Within two oil changes of a different brand I started getting oil seep from gaskets and seals. Two Amsoil oil changes later and the seeping has stopped. The lab has always commented on how my motor is wearing significantly less than comparable motors. I also beat the crap out of my car and have seen the drag strip many times. I have no worries that with Amsoil products every vehicle I own will go 300k miles plus.

Received my order quicker than expected

I’ve been using Amsoil in both of my trucks. I have a 2002 Tundra and a 2016 Chevy Silverado. I think Amsoil is the best oil you can buy. Both trucks are running great. Neither burn a drop of oil.

I have been using this oil for many years , and I would not ever change to another brand! Out beats all the other brands.

This was the last chance before I replaced my cam and all my lifters in my 09’ 5.3l. With only 106,000 miles I did not want to do that job. My motor would tick on some start ups and always when it was hot out. This Amsoil and the Amsoil motor and trans cleaner quieted my motor right up. I always skeptic of Amsoil’s claims but have seen enough studies to say they mean what they advertise. I’ll be an Amsoil customer for life now. Thanks, Amsoil!

Best oil I have ever ran in my vehicle, gives me a higher level of confidence than any other oil.

Will never use another oil again.15 out of10

I started using your Signature Series Oil in my 2010 Ford F-150 SVT Raptor for the last three oil changes. I've seen an average Fuel Mileage increase of 2 MPG. Because of this performance, I've just started using Amsoil in my wife's Ford Edge. I expect to see fuel mileage gains in that vehicle also. I've experienced the benefits of Synthetic Lubricants and have used them in all my machinery for many years. Very happy with your product and your On-Line store.

love using this oil. nobody has a super great time changing the oil every few months like in the past with regular oil. with this about once a year I make arrangements to get it done.

There is no other oil I will use but Amsoil!! I’ve used it at least 30 years! I’m a retired Firefighter, even when it was 30-40 degrees below zero my vehicles always started when the pager went off. I use Amsoil in my Pickup, SUV, Outboard motor, Lawn Tractor, and Snowblower. It’s always has done an Outstanding job for me.

Amsoil is the only oil I put in any of my vehicles

The best way to treat your car or truck.

I’ve tried Mobil 1 Full Synthetic and Chevron/Havoline Full Synthetic. Both oils would give my engine just a little tick on start up when it was below 30 degrees or so. No tick so far with the Amsoil. The lowest temp so far has been around ten degrees. Very happy with this oil.

Solid stuff. Nice amber color even after several thousand miles. Price is good too, just wish this was available to me locally.

Incredible product, been running this for sometime now, awesome results.

Been using this oil for years. When others had typical predicted engine failure at high mileage due to manufacturer design flaws, when I had a Ford, my engine kept going. This oil has proven itself again and again. Our 3 Toyota vehicles we now have came with 2 years of free oil changes, and I still chose to use this oil instead. It’s worth it!

This stuff id's some of the best oil I've found and use ALL the time in ALL my vehicles! Just do your research, it does what it says it does. Love the free stickers every order as well!

Was time for the first oil change 6,000 miles on my 2020 F150 5.0 engine. First oil change was free at dealer. They used Ford oil. After the oil change, the idle went up, oil pressure went down, gas mileage went down, and there was a knock at idle. I think the origin oil must have been a Ford Synthetic. The dealer said it was a Synthetic-blend, if so why did the engine change so after the oil change. Ordered the Ams oil Synthetic 5W20 SS and a filter. The engine returned to normal, no knock at idle, pressure came back up, and the main thing, the fast idle when engine is cold went down from 1800 to 1200, (that's a lot), the gas mileage did not go back up, its winter time in Oklahoma, more idling and fast idle at starting. The best thing with Ams oil is the knock at idle is gone. Will be only changing oil once a year or 15000 miles.