Customer Ratings & Reviews

Was blown away, with the fast delivery. And free flashlight with purchase. Yes the flashlight is like from the dollar store, but who doesn't like free stuff. Really like how the oil came with stickers, you already know ill be sticking them everywhere. With those simple gifts, ill only be buying from Amsoil

Nice smooth clutch operation!

So this is my first time using Amsoil in my harley at all I was getting a clinking noise and shifting started to get a little tougher I've always have used regular motor oil 20w50 in all 3 holes but I tried this to see how it works and what all it did it was a night and day difference shifting became smoother less noise all around im happy with it so far so we will see the longevity of but as of right now highly recommend for your Harleys primary

Only use primary case oil In my Harley Great oil.

I have 49K miles on my 2007 Harley Davidson Fatboy motorcycle. In all those miles and years, I have always used AMSOIL Synthetic Primary Fluid. At every fluid change interval there has been very minimal wear metal dust on the drain plug magnet. The primary is very quiet while in operation. I highly recommend AMSOIL Synthetic Primary Fluid.

Smooth

I have been using it since it came out. Works very good.

Another great product

Great oil. Highly recommended!

Takes away that chain slap sound, clutch is smooth and easy shifting. It’s the best.

Great product

Works as advertised!!

Great product better than just running oil.

Was easy to order and get the right product. Bike runs smooth with Amsoil. Decided to try in my Harley after reading reviews. Works great.

Used this on a 2006 Heritage Softail. Great product that I trust.

This is a great product, this oil doesn't holds together great in the primary case.

first time using this seems fine

Quite primary now

Changed from recommendation from the factory. Within the first 10 miles the slipper clutch started working again. Neutral finding was easier. Love all 4 products I purchased .

The main reason I recommend the Amsoil primary fluid is because it eliminated my clutch chatter. Clutch would start to chatter using screaming eagle oil after about 2500 miles, after changing to Amsoil I no longer have any chatter. Good beyond 5000 miles.