Customer Ratings & Reviews

I purchase this product for friends of fine that use it in their Harley Davidson motorcycle. They tried other products but Amsoil is the only product that works to keep the engine cool, smooth and protect against all elements.

I changed out my out Harley Davison engine oil with Amsoil. Immediately the engine ran quieter. The feels like it runs a little cooler as well.

Great product...AMSOIL I use it in everything... Trucks, Motorcycle... Only oil I use, if U value your vehicles, Use it...

As always really like the Amsoil, I have changed all my vehicles over to it along with my motorcycle and will be switching my tractor over on the next change.

I've used this product in my bikes for many years. No second choice. I carry a quart with each vehicle for top ups if needed. Used in both 95 and 99 Evos and 04 and 10 Twin Cams.

Best synthetic oil for motorcycles

I really appreciated the quality and consistency of the Amsoil products! I use nothing but Amsoil fluids and filters in both of my Harley Davidson motorcycles and continue to be impressed on how well the products perform!

My 2017 V Rod Muscle used oil every time i used Harley Davidson s3. Now i switched to amsoil it doesn't use any!

Have been using AMSOIL in my vehicles for about 10 years now. I am very happy with the performance. I have used the 20W-50 in my BMW R1200RT since it was new in 2009 and it has worked great.

I love this stuff, it keeps my bike running in top shape! I put 6000 miles on an oil change this past summer and it still looks great, I could probably run it half of next season too.

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I use Amsoil for all my vehicles. I have nothing but good thinks to say about their products. A true synthetic unlike others brand who are blends of motor oils.

Makes your motor perform as intended and offers the best protection you could hope for

Love the product you make and will continue to use it for every thing I own

Great online service.

I have switched all my rigs to Amsoil. Both my trucks a Dodge 3500 with a Cummins Turbo Diesel and a Nissan Frontier with a 4L V6 and my Harley Davidson.

Love amsoil products and order was packaged well but case had been dropped on its corner and 1 bottle was split open so both cases were soaked how do I handle this.

Smooth shifting, quick starts. Best oil ever.

Great Product, My V-Twin Runs a Lot Smoother And engine Noise is Noticeably Less as Well... I will not Run Any Other Product in My Ultra Limited Ever again...

Just performed my 100k mile service with 20W-50 Synthetic V-Twin oil. I've been running it since 20k. I hope to make another 100k on my 2003 FXDWG. Love the oil, love the service.