Customer Ratings & Reviews

Buying direct of Amsoil is cheaper than buying from the stores. I like to buy in bulk so I have the oil available when I'm ready to do an oil change.

I was using Harley syn3 15w-50 in my 2021 ultra limited and i would notice a lot of engine noise when it got hot and I been riding for a while in the heat, I did some research on line and found that a lot of Harley riders love this Amsoil for just that reason so figure I try it, and man I am glad I did engine sounds great after its been ridden all day on a hot summer day.. I will never go back to syn3 I will have to see how it does when the weather gets colder on these chilly mountain morning but for now I am loving it. Oh i am also going to be using it in my 2026 tacoma Thank you Amsoil

This is some good Earl my man! The lubiest of lubes even.

I own Harleys, Triumphs, and Honda motorcycles and run Amsoil in all of them. Highly recommend.

This oil for motorcycles has a very high rating and it has been great for me

I needed some quality heavy weight oil for Alabama summer. Engine runs smooth. Arrived fast in perfect condition.

I've tried several brands of oil for my Harley Davidson, and Amsoil out performs them all.

I like Amsoil because it really holds up under heat in these Harley twin cam air cool engines

Product is the best on the market for all of my motorcycles.

Great oil.

Haven't had issues yet. Been about 1700 miles

The Pinnacle of motor oil. It just don't get any better.0

I've been using this oil in my twin cam 88 for many years now and I absolutely love how my engine shifts smooth and just all around everything that an oil should be this oil is it and so much more

I've bought this oil and filter a second time now. I reviewed the first purchase also as positive. What really sold me was seeing an old Evo Harley at the Amsoil display at Full Throttle outside Sturgis a few years ago. The HD had been sitting idling when we arrived and was still idling when we left about an hour later. That was impressive. I made up my mind at that point to review Amsoil and purchase. So glad I did. My 2018 Chieftain always ran great but the Amsoil has made it better. Thank you for this great product.

This is the only oil i use in all my motorcycles. And has been for many years. Have never had a Motor or oil related problem. Their is no reason for me to ever change oils.

Great product run in all my bike

The best blood for my hawg! Fast delivery as always too. THANKS AMSOIL!!!

I have used your product in multiple high performance motorcycles, it is the only way I roll now. I've tried the competition, Mobile 1, Castrol, HD Screaming Eagle, K&N and Valvoline. There is no competition when it comes to heat protection, fluidity and duration. Thank you Amsoil.

After doing some research, I switched to full synthetic Amsoil 20w-50 for my 2015 Indian Thunderstroke 111. As I have doing more research I find that 15w-60 synthetic may be better. I may go with that my next oil change. But wish you guys would sell that weight oil, in gallon jugs though. Any chance on doing that in the near future? other than that, my 15 Vintage with 45,000 miles has never ran smoother, thank-you.

I been using this oils for my 1991 Harley Davidson,and my bike has 258 295 klm and the motor has never been touched yet !!! I put this oils in 3 holes,motor ,transmission and the primary,so I got nothing bad to say about AMSOIL!👍😎