Have a question about Honda HP4M (silver bottle) and HP4 (gold bottle) oil? Both of these oils say almost the exact same thing....they are both used in high performance bikes....they are the best.....etc. etc. They only difference between the two is that the HP4M has and additive called "moly" and the HP4 does not. The label does not state what "moly" does and if it is needed or not. The parts guy said that since I have not used HP4 oil in my bike yet that I should use the HP4 a couple of times and then switch to HP4M, but he did not tell me what "moly" does for my bike. Any ideas?

 

He doesn't know jack crap. Most of the people workin at the dealers are idiots and they tick me off. Not saying that I know what it is but I've been in sales since I was 16 and I'll admit I've done some BSing too.

Mike

 

people have told me moly makes your clutch slip.

 

that is all I hear about Moly....its bad....... it makes your clutch slip. If that is the case why is it added to the oil in the first place. It must have a postive side.

 

Moly is short for molybendum.Molybendum is an additive put in oil to help reduce friction by adhering to the walls of the piston chamber.So this kind of oil would only work well with motorcycles that have dry clutches or motorcycles that do not share the same oil with their respective transmission parts,like Harley Davidsons.This means if you go and put oil that has moly in your bike, and i assume you have a wet clutch system, this moly additive would adhere to your clutch plates and cause your clutch to slip.If you accidently put it in your bike flush it out with the correct oil and replace the filter.If it was a one time accident you should be fine.

 

Thanks joker for the great info....

 

Anytime.

 

another dumb question? I know I should know but does a 99 F4 have a wet or dry clutch?

 

I think all sports bikes have a wet clutch? And like I said your dealer doesn't know anything because he told you to put it in your bike which would have been bad. lol

Mike

 

some ducattis have the dry clutch. not sure about other bikes. but wet are more common.