Was talking to my service Tec today and told him I serviced the bike yesterday . So he ask what I had put back in it .

20-50 Amsoil in the motor and 20-50 H-D in the primary .
He said 20-50 H-D was not good enough and use H-D trans oil ?

What do you use ?

 

H-D Formula + in the primary.....

 

20/50 Amsoil in crankcase
Gear oil in the tranny
HD Trans/primary in the primary.

Most dealers want you to use syn 3 in all three holes.

 

Wal-Mart 20W-50 "Tech" Brand motor oil in the primary ( for about the last 100,000 miles or so.)

Its $2.67 a quart.

 

What do I use? Whatever the dealership puts in it. Probably 20W-50.

 

10 w 40 in my primary...........clutch won't drag in the cold mornings.
If you have a sportster then the oil is shared with the trans.....and the Harley tec is right

 

I currently have syn3 in the engine and Formula+ in the trans and primary. I'm thinking about using Syn3 in all 3 holes next time or Lucas 20w50 synthetic in the engine and primary and Lucas synthetic gear oil in the trans.

 

HD 20/50 or F+ makes no real difference.
F+ is a bit lower cost is about all.

 

Yep, I just use 10w-40 Castrol (Dino). Hell, all that's in there is the clutch basket and a chain. Almost any oil that isn't too slippery will work. JMO

 

Had ATF then switched over MTL. Shifts like butter.