Customer Ratings & Reviews

I have used AMSOIL oil for yrs on my Harley. It was recommended to me thru a commercial years ago. No turning back with this product. I’ve used it since 2015 when I purchased my bike.

Switched to this from motor oil in all 3 holes and the primary runs quieter and have little to no debris on the drain plug magnet

Great product. 60,000 kms and the primary is clean and next to no wear on the chain, chain tensioner, Compensator, or clutch.

Clearer and thicker than Syn 3.

It's AMSOIL need I say more

I ordered the Harley Davidson service kit to change the fluids on my 20 Ultra limited low touring bike. I had clutch slippage issues and problems with finding neutral and couldn't figure it out. Until a Technician told me to switch to Amsoil synthetic instead. So I parked it until the Amsoil delivery. Changed the fluids and I noticed a big improvement in noise reduction and functions in riding. No slipping on the clutch, easily finding neutral. Quieter engine sounds....I'm definitely a believer now.

first time using the dedicated Primary Fluid. Been using 20W50 Amsoil for 3 hole oil changes in my Harley since 2012. So far no muss, no fuss, no mechanical failures. We'll see how it does, I'm anticipating nothing will go wrong.

Just changed. Seems goid

This is a very good product. I have used it for several years and have always been pleased with the way it works.

I have found that it is much easier to get my FLSTC into neutral when using Amsoil V-Twin Primary Fluid.

Only oil to use in a Harley. It helps stop the in gear clink and allows for faster, smooth shifting.

Great product

Very smooth and grippy clutch. 2020 road glide

Have been using this product for years and IMO it is an excellent fluid.

This Primary Fluid always works well for my needs. I change all 3 holes every 5k just for peace of mind. Amsoil is the only Fluid I will run in my Harley's.

Best on the market

I have a 26-year-old Road King, I switched to AMSOIL for my Engine, Primary and Transmission. My engine runs cooler, the clutch is smooth, the transmission shifts better and I pay less.

Great product

Have a 2010 Street Glide. Not happy with Harley brand fluids anymore. Decide to give Amsoil products a try. Works great in my primary. A quite run now.

As above.