Customer Ratings & Reviews

Never had a clutch issue using this oil

Transmission has never shifted smoother

Shift Smoother than 20w50

amsoil you can't go wrong with transmission fluid

I have three v-twin motorcycles, also quads for me and my family A soil is the only oil I use in them. I started using Amsoil many many years ago

I recently changed my 2015 Harley FLHXS to amsoil in all 3 holes. It's cooler weather now so I can't really tell if the engine is running cooler as others have said. I can attest that my transmission shifts better and less clunking when dropping into 1st gear. Either the bike is happier with the amsoil granny lube or the amsoil primary lube. Either way I am very happy with the amsoil products for my bike. Is it possible that lubrication change makes it feel easier to back the bike up? Doesn't make sense but it sure feels easier to back up.

Works great in my ‘08 Road King. Probably change fluid before I actually need to but it has become a yearly habit.

I read a lot about how Amsoil would quite down the changing of gears as well as make it much easier to find Neutral.... LET ME ASSURE YOU ITS TRUE. I am shocked it worked as well and it did.

good product little pricey

Switched to this from the Red stuff and love it so far. It makes my Road King run smoother.

I use only the best in my vehicles, V-Twin synthetic works great on my Streetglide. I use Amsoil in both my trucks and my wife's SUV. Never have internal engine problems. Thats a 02 and 08 trucks and a 2011 SUV. Cant go wrong with Amsoil.

Great trans oil. Just wish it had some color to it because it's very hard to see on the dipstick.

Harley Davidson maintenance , using for 160,000 + miles, bikes running great

Love it

the best!!

Awesome product

i have been using h.d, oils in my bikes for the last 30 years. read the spec's on this. talked to someone that uses it and now im trying it. went the full change over doing engine transmission and primary. 500 miles is not enough to tell but so far i can't complain. smooth running thru the gears, no noise and engine purring. another 2000 miles will tell all. my last bike a 2000 fat boy, it now has 95k with no engine work done to it. change your oils, often. it's the life blood of the machine. pay a little now or a lot later.

I will always use this in my Harley. Great product!

Great Oil

I don't hear all of the noises coming from my transmission anymore!