Customer Ratings & Reviews

I use nothing but AMSOIL in all my vehicle's to include primary fluid for my Harley's and Chopper's. Before AMSOIL came out with Synthetic V-Twin Primary Fluid I used AMSOIL Synthetic 20W50 oil which is the same as I used in the motor which performed great but now I used Synthetic V-Twin Primary Fluid. It gives me the same confidence as the AMSOIL oil I use. Great products as always.

I do all my own oil change services on my Harley’s and this is what I have been using since my first service on my 2018 and 2020 Road Glide. I have no problems with finding neutral, and have used it 10k on the 18, and 10k on the 20 so far. It’s very quiet with no trans noise and that’s in Daytona bike week heat traffic. Just like the V twin trans fluid, great.

Primary clatter is quieter.

I've done my research and noticed the results , I only use amsoil products in my vehicles

Outstanding product, have been using Amsoil for years in my Harley Davidsons without any oil related issues.

Noticeably easier shifts

I was amazed at the smoother glide and lower noise....best primary oil I’ve used.

quiet, smooth operation. dont get the primary noises as i did using harleys “syn 3” or “formula plus”

I have always used AMSOIL SAE 20W50 in all applications of my Harley to include the Primary. I never had an issue with the SAE 20W50 but since AMSOIL came out with the specific primary fluid I have been using it and I have even more confidence in the performance. I will use nothing but AMSOIL in all my vehicle applications. I have 4 Harley, 2 Big Dogs, 2 Trucks and 1 Car and they all use AMSOIL which is long lasting and the confidence in protections no other oil can give.

This oil works very well as all amsoil does wouldn’t use anything else in my Harley.

I think the product is superior quality. Shipping was fast and packaged well. I suggest free shipping on all orders as locale isn't easy to find. Sometimes people just need a quart and don't want to spend shipping so they might shop somewhere else.

I will always use Amsoil in my bike

Great oil! Great company! Primary oil I can trust in my V Twin!

So far smoother shifts and easier neutral find, also stronger clutch feel.

Excellent products from Amsoil! You can immediately feel through the shift lever foot control that the primary is much happier using Amsoil. Shifts are much smoother. Will never use another product, for all my Harley needs It’s Amsoil all the way.

Clutch action is smoother

Great product at a great price