That is what they say but even Honda only states that an oil with no longer will have a clutch that lasts longer. If you look at the racing oil where they openly admit to moly being in it, they state that a clutch that is already worn will slip more with this oil. The key here is that they are already prefacing it that the clutch is worn to begin with.
The exact wording from Honda:
The negative part about moly is that it can build up on clutch plates
and accelerate clutch slipping on a clutch that is already starting to wear. It takes
several thousand kilometers for the moly to accumulate enough to cause this
Also, take Honda HP4 oil which is for motorcycles.
In that graph, 6 of the 19 motorcycle oils have moly in them. Also, Honda sold the HP4 oil with and without moly....the one in the graph is without moly. Mobil 1 didn't have that much more.
If Moly is a huge issue, then why is Honda selling oil with Moly.
I definitely wouldn't use the Torco oil; that is a huge amount of moly and I would think they are using moly as an almost exclusive anti-wear and anti-friction agent in their oil.
Here is an average of all of the oils in the previous chart:
The Torco and Maxum oil contributed the most to pushing the Moly in bike oil vs auto oil higher.
Also, is the Castrol Power 1 a motorcycle oil?
The whole moly thing was discussed here back in 2003: