Customer Ratings & Reviews

I've used this Primary oil for years. It does the job for me.

Great product for Primary chaincase. Runs smooth and the price is right!!

Best product for the application V Twin Harley primary chain

Always used with no problem can’t stop now.0

I would not use any other product for my Harley Trike

The Amsoil specific Primary fluid keeps my Motorcycle's happy.

I recommend this in all your primary's it really does do what it was advertised to do I will never go back to any other synthetic oils

Mon bike est comptant

Been using Amsoil for 25 years in 4 Harley's. It's never let me down.

easy shifting

The go to for my HD, yet to use anything better

Have used it for year and will continue. Great product and fast service.

excellent primary oil. About the best on the market

This oil is really good for your harley

Switching from Harley’s promotional fluid to a real synthetic primary fluid, Amsoil provides smoother clutch, quieter primary and better fuel economy. Use it, you won’t be let down!

This seems to make less noise in my primary than the fluid it replaced. No clutch slipping. My 2024 Low Rider S makes plenty of power and torque. It will easily pull the front tir off the ground. I know my bike is protected.

I have been using Amsoil products in my 1998 Harley-Davidson Road King Classic FLHRCI for 10 years now. I trust their products completely.

I've been using Amsoil Primary Oil for years now. It does great at protecting the internal primary parts. Would recommend it to others.

It just feels better when changing gears

Excellent for my 2012 FXDWG !