The AMSOIL Synthetic V-Twin Primary Fluid is awesome for my primary chains long life and for the clutch, and primary chain tensioner. I never believed the engine oil is good in all three holes on a Harley Davidson motorcycle. I use fluids specially designed for each area on my Harley Davidson motorcycle. I plan to ride my Harley for many, many more miles. I highly recommend AMSOIL Synthetic V-Twin Primary Fluid to anyone who want the best performance out of their Harley.
eliminated hard knock at cold starts and overall shifting much improved 2015 road king 3500 mile mark introduced Amsoil. 12,500 and I'm sold on it. Used their filters too.
I immediately notice a difference right after my first oil change. After switching to Amsoil, I could not believe how much smoother my clutch functioned. Don't waste your money on other brands, just buy the Amsoil.
I use Amsoil in all three holes in my twin cam it quites my rocker noise and the trans shifts much smoother and can find neutral way easier. I LUV THIS OIL
I switched over to the AMSOIL for the same reason as the transmission fluid, I don't think you should run motor oil in the primary. I'm getting easier shifting and the clutch doesn't sound like it's trying to slip when I roll on the throttle hard.
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5 star rating
V-Twin Primary Oil
By 
JOEY, 
a 
Verified Buyer 
on 
June 28, 2022
I do ocassionally allow HD to do some servicing on my bike but I always take my own Amsoil and insist they use it or I will take my bike elsewhere. Amsoil products are so much better than theirs and I want my bike engine to last a very long time and to always be ready to go on extended trips when I want to go.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
10stars
By 
ED, 
a 
Verified Buyer 
from 
New Hampshire  
on 
June 23, 2022
Great stuff, all I use in my bike. Fast shipping and customer service is great.
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