Customer Ratings & Reviews

Great for high mileage engines. Great product.

Great I changed the oil in my wife car with this oil and man I can hear the difference I will be coming back for more Thank you

Used a engine flush before swapping over to amsoil since I have rough 216k on the clock in my 06 Silverado 5.3 and it’s made my truck seem to drive smoother and a bit more responsive when I accelerate off the line. Time will tell if this oil and proper maintenance can take me to 300k!

Amsoil high mileage synthetic motor oil is excellent.

👍👍👍👍👍🌟🌟🌟🌟

I use Amsoil in all my equipment from the cars, diesel trucks, tractors, 4 wheelers, and zero turn. They have a lube for everything. I use the high mileage oil on the Nissan rogue to keep it running smooth and the wear down.

I have a 2011 Cadillac CTS-V in great condition. In order to keep her that way I choose to use only the best products and parts. The foundation of her fair is the motor oil and gear oil I use. So I only use the best AMSOIL.

My 2UZFE likes the stuff...smooth and quiet plus reduced consumption...nothing to dislike about any of the three weights I have tried..!!!

When I discover Amsoil and did research on the oil there is no other synthetic oil on the market that has the motor protection as Amsoil ! Thanks

Its really too early to give an evaulation of this new product, as it has not been in this engine long enough to tell much. While I have used amsoil for many years and believe it to be among the best of the synthetics, its does not seem to change much in the performance of the 5VZFE in this truck. I am wondering why the high performance filter is not spec with this oil.

Been using this in a 2002 Tundra. Doesnt burn a drop/. At 10K the oil still is straw colored not worn out/ I usually replace at 8 to 10 K. No problems for the last 50K.

Friends love it. cars sound better run better. They are very impressed!

Decided to try Amsoil over my go to royal purple. I am super impressed! No more valve chatter at idle

I've used Amsoil for years with unbelievable results. My 2007 Triumph motor cycle is getting close to 100K miles and the valves, which call for valve adjustments at 7000, still doesn't need any valve adjustments. Now I just bought a 05 Tahoe, and changed the oil as soon as I got it. I just wish it had a steady diet of Amsoil through it's life. And now I have to hope this High milage formula will make it so it runs for many years to come.

Just switched to this oil for my 2 high mileage vehicles. Online ordering was easy with quick delivery. Unfortunately no historical data yet though I have high expectations from good reviews and great product.

Just switched to this oil for my 2 high mileage vehicles. Online ordering was easy with quick delivery. Unfortunately no historical data yet though I have high expectations from good reviews and great product.

03 Sequoia, 287500 miles and counting. She purrs like a kitten !

Been using this type oil on all my cars. Including GT350 Shelby Cobra. I change it every 10,000 miles with still visible oil color. Well worth it.

On my third oil change. Protecting my engine and clean it at as it runs through my engine. Great for my direct injection engine. Even put it my brother's car

All Amsoil products are high quality and make a true good difference in the performance of our vehicles.