I change my fluids every 5,000 miles and been using the Primary fluid ever since it came out and I have never had any problems.
I will use AMSOIL in every Harley that I will ever own.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Primary fluid
By 
JIM, 
a 
Verified Buyer 
on 
October 16, 2023
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