Customer Ratings & Reviews

Change my primary fluid every 3000 miles with excellent results using amsoil product..! Thank you..

The best oil for a Harley V twin in my opinion.

This review reflects usage on a 2023 Harley Davidson Street Glide. From the time it was new, the clutch engagement was extremely erratic, causing the bike to lurch when starting out. It was very unnerving. In forty-plus years, I had never experienced such a thing on any other brand of bike. I was told that once the 1,000 mile service was done, it would be fine. Since I had a few warranty items to address, I had the dealer do the 1K service as well. Well, the clutch was no better. Finally after another 600 or so miles, I was fed up and decided to “re-change” the primary fluid and replace the brand new Harley fluid with Amsoil Synthetic V-Twin Primary Fluid. I noticed an immediate change in the way the clutch performs! The clutch engagement is much smoother and it is a breeze to find neutral. I highly recommend this oil over the OEM oil. I run Amsoil products in everything I own, from vehicles to lawn and farm equipment. This bike will only see Amsoil products from this day forward. P.S.- One tip – the manual states that the bike should only take 28 oz. on a drain-and-fill so one would think that a single quart would be enough. I needed a little extra to get to the full line. My advice is to buy two quarts. If you get away with one quart, great. But if not, you won’t be stuck waiting to get more.

Saves wear and tear on your clutch 100%!!!

I made the switch to AMSOIL full synthetic in all 3 holes and I’m hooked. I don’t see myself ever switching back to anything else.

Since using the V Twin Primary Fluid. My bike feels smooth and silky. It handles a lot better. First time using this product. I will continue to use only AMSOIL!!

take it right in and forget about it

This helps bike run cooler

Better than manufacture standards

It's synthetic primary fluid. It smells like chemicals, slipperier than ice on Interstate I-10 West.

I can count on the best protection for my primary chain and components with Amsoil

Use it in all my bikes.Makes them run quiet and shift smooth

I wish I had ordered 1.3 quarts, anyway my vehicle can default to amount needed on this? Love this product, great reviews like yours led at before purchasing, my last ride, want to take care of.

I know that my Harley primary chain and components are getting the best lubrication.

Great product. We use it in all our Harley’s.

Primary chain is quieter and operates much smoother with Amsoil

I purchased a complete Amsoil kit for my '21 H-D Trike... This is my first experience with this brand. So far, I really like the quality...the transmission seems to be smoother and a little quieter. The brand is highly recommended and I am looking forward to the long-term use of Amsoil going forward.

Great product!!

Clutch works great using this product. Wouldn't use anything else.

I’ve run Amsoil V-Twin Primary Fluid in all of my Harleys for the past several years! Works great! I’ve had no issues, clutches work great and last many thousands of miles! No primary chain issues…no compensator issues, no noises!