Customer Ratings & Reviews

Great trans fluid. I wish it had some color to it because it stays so clear it's hard to read on the dipstick

This oil is amazing, I bought a 2016 street glide, the thing had regular Harley oil in it when I bought it, changed out everything, the engine, the transmission, and the primary, it starts up easier, I can get it into neutral a lot easier, it’s a different bike all together now, guys try this oil in your bike, you won’t be disappointed

This is the first time I’ve used Amsoil. This has been a low mileage season but so far my ‘02 110 stroker motor is running about 30 degrees cooler and the valve train is noticeably quieter!!

Awesome product so far! Quieter tappets in my Sportster for sure!!

Switched to absolutely versus Indian oil . Definitely made a difference. Not as much chinging in the motor .

I’ve been an Amsoil customer for quite a few years now simply because they make a superior product. With the independent testing and the extended oil change intervals, it’s a win win.

Engine runs cooler and quieter

I got this oil to use in the summer months. From June to September in South Carolina the ambient air temp. can be 85 to 100 degrees. HD says to run straight 60 for ambient temps. over 80 degree. I believe this will help the oil temp. stay around 230 degrees thusly making a happier M8!

Was getting ready to do a top-end on my 65 Pan, wrenches in hand, when I checked the Net to see if anyone had come up with 60W synthetic. The Pan smoked a bit and ran poorly when hot. I ordered some AMSOIL 60W and received it in one day. Emptied and flushed the oil system with about a quart, then filled it with the usual 4 quarts. Now I still need to do a top-end someday, but for now, the Pan is running superb. No smoking, higher oil pressure, running cooler and smoother and easy starting. I didn't expect this much improvement.

Put this in my Harley for the first time and notice a difference right away. Trans shifts much easy`er and primary not as noisy either. everything is running smother when ya come right down to it. Like it so far, will use it from now on in all 3 holes. Thanks

I’ve been using Amsoil for years. It’s the best lubricant for small engines nothing compares for the price. I trust this oil it has stood by me to protect my investments.

I have been using Amsoil for over 10 years now, I have put it in no less than seven of my friends motorcycles they all keep coming back for me to change their oil with Amsoil. Myself and almost everyone of them report a 15 -20 degree drop in operating temperature, In my book anytime you can do that on an air cooled V-Twin Harley do it. Also not one of my friends has had an internal mechanical problem I will continue to use and recommend this product to anybody that listens, keep up the good work Amsoil your product in my opinion is light years ahead of the competition !!!

I've used Amsoil Synthetic for years in my bike and will continue to do so. Highly recommended!

The only oil I use in my HD.

Best oil for a motorcycle

Easy to order fast shipping cheaper than mobil 1 and harley oil