Is it a good idea?

 

transmission-yes, primary-no

 

Primary NO - Transmission - YES

 

Go to any convenience store....pick out the cheapest brand of Type "F" transmission fluid. Put in one quart and be done with it. Repeat every 10K miles. This stuff works great with the clutch plates. Also if you ever develop a leak you'll know if it's coming from the primary because the fluid will be "pink."

 

What do you put in the primary?

 

I use Amsoil Motorcycle 20W50. You can use Syn3, or ATF fluid. Remember, there aren't any gears in that box, only a chain and sprockets and clutch plates.

 

Primary:

formula+
Syn3 20w50
10w40 Mobil1Vtwin
Mobil1ATF
BM trickshift
Redline MTL
Amsoil 10w40MCV
Mobil1Vtwin 20w50
Amsoil MCV 20w50
TypeF ATF

never 75w90 gear oil or any gear oil

 

Thanks a lot guys. I am gonna pick up a new drain plug seal (gasket) from the dealer on Monday and change the primary fluid. I have a couple of extra bottles of AMSOIL 20-50 in the garage.