i put old faithful in mine dino that is what i ever used i know there is alot of stuff out there but i cant see risking 12.000 dollars on a maybe .

 

Whats old faithful?

 

HD is now recommending HD Formula+ for use in primary and tranny.

 

AMSOIL 75W90 Severe Duty.

Also, AMSOIL 20W50 in crankcase & primary.

 

I've got syn3 in there now but I'm switching to mobile 1 75w90.

 

If you use syn3 in your tranny, youre playin with fire. 20w50 is not heavy enough for a transmission.

 

So far the Redline Shockproof Heavy is working very well for me. Trans shifts very nicely and does not seem as noisy as with the Syn 3.

 

Man, you guys got me scared! Ok so I only have 4500 miles.. I'm dropping that stuff out of my bike this weekend if I can. Screw waiting to 5000. And yes, I've noticed the bike shifts pretty clunky, and I've not been overly impressed with the engine at idle also.. Sounds like too many parts rubbing and bouncing around. That crap is coming out of there THIS weekend.

 

Ditto what txHarleyman said. I use 75-90 synthetic & trying to locate some Amsoil gear oil.

 

Would Royal Purple 75X140 work in the Trany or is it to heavy? I am changing my three holes at 600 miles. I have the RP along with ATF from my F250 and would like to not have to look for more.

Scotty