Engine definitely runs cooler with Amsoil. Working great for me and many others.

Have used for years!! No problems works good change at 5k miles. Have sent in for oil analysis and it looks great. At 5,000 miles it was like 3500 Miles of use.

All the reports are true ... V-Twin 20/50 works great. My spent oil at recommended intervals looks like it could go another 3,000 miles.

Perfect for my Yamaha bike

Product is to high priced

I use for my RM Indian. I will continue to use it.

What else can you say, Amsoil is the best!

My bike runs so much quieter than it ever has

November 13 2021 I had my, 2007Harley Davidson Ultra Classic, Dyno Tuned, the technician was surprised how cool my bike ran on the dyno, most bikes he needs to shut down after running WOT for a wile but mine with Amsoil 20/50 V-Twin oil ran a good 20 degrees cooler than expected. I have been using Amsoil in my Harleys since 2002. I started using it in my 2002 XL1200 S 12 second quarter bike, and never looked back. Thank You Amsoil.

I've had my 1998 Harley-Davidson road king classic for 10 years.I started using all Amsoil products each season when I put the bike away for the winter about 3 years ago. I'm very happy with the products. I use 20w50 synthetic oil for the crankcase. Amsoil transmission and primary fluid too.

My motor cycle engine oil runs at least 20 degrees cooler on hot days. Engine runs 200 RPMs lower on cold startup. Engine runs great.

Highly recommended for all 3 holes. No need to purchase separate oils.

I use Amsoil in my Indian Motorcycle. The large air cooled engine puts off a lot of heat, especially during summer in south Mississippi. The engine heat was greatly reduced after switching to amsoil, so you know the engine is having less wear.

Great product especially in the Florida heat. Running it in my harley davidson.

Always use in my bike

my genius Harley Mechanic, David Crane of DC Cycle and Racing uses it in all his clients bikes; therefore i use it!

I didn't ever think I'd be able to afford Amsoil, however, with the price of oil going up all over the place, is not that much different. So now I can finally afford Amsoil, yeah me.

I ride my motorcycle in 115F+ degrees or several thousand miles across the country, this oil really protects the engine!

good oil for the hot weather down here in the summer.

The BEST oil for Harley Davidsons . Runs cooler and quieter