I never hear anybody complain about the absence of lead in our oils and gas.
And this proves what? That you are deaf, or unknowledgable? You never heard about valve seat recession and that all modern engines must have valve seat inserts instead of cast iron seats, because the lead was removed from gas? Our Hondas were spared this issue since aluminum cylinder heads have steel inserts already.
Besides, a negative proof is no proof at all. Go ahead, prove to us that you don't beat the wife and kids in secret. You don't hear any complaints from people who died of poison gas inhalation either.
If it were needed, our 30+ year old machines would be dropping like flies.
Another meaningless negative proof argument, as well as a gross exaggeration. The lack of ZDDP in the oil is not the same as no oil at all. Increased wear patterns are not the same as catastrophic wear patterns. Most people don't keep bikes till the engine is worn out. Much less two bikes where each one used a different oil and was subjected to the same running conditions. How else would they notice a 10,000, 20,000 or 40,000 mile difference in longevity? And, if they are resurrecting a bike that is worn out, how could they attribute the problems to the wrong oil used by the previous owner(s)? ...And then send you an email about it?
And while you occasionally hear complaints of moly ruining a clutch, nothing has been proven.
...to your satisfaction. Can't prove that God exists either, can you? Can't prove that god doesn't exist either.
I've used the Honda moly oil since 1986 in all bikes I've owned and have NEVER had a clutch problem, NEVER replaced a clutch.
And, I HAVE replace a clutch or two that was contaminated with moly.
And so what if API "has eliminated specific support for wet-clutch motorcycle applications". Motorcyclists only only 3% of the population of the U.S.. I'm surprised they "supported" us in the first place. My guess is that this position is because American bikes (Harley) don't need that kind of support, so who cares?
I do. Sorry, if I don't buy into your "guess" and wish to risk my transmission and clutch to your recommendations. There ARE documented tests that show transmission gears benefit from zinc lubrication. They were referenced in prior oil threads for those interested in using test data to form their opinion.