Heard something interesting this morning.....
I'm not a HD owner, but I chat with a few that do own them and I have been told that there have been reports of engine roller bearing failures that have been traced to the use of synthetic engine oils. I don't believe any formal studies have been made that back up the synthetic use claim.
The cause of the failures so I'm told, is the slippery-ness of synthetics allows the roller bearing balls to slide around in the races rather than roll. This sliding then flat-spots the balls and chews up the bearing.
Sounds more like a crappy bearing than an oil problem to me.
Doesn't HD market a Screaming Eagle synthetic oil?
One of the few things I've found in a Goggle search:
rec.motorcycles.harley
I'm not a HD owner, but I chat with a few that do own them and I have been told that there have been reports of engine roller bearing failures that have been traced to the use of synthetic engine oils. I don't believe any formal studies have been made that back up the synthetic use claim.
The cause of the failures so I'm told, is the slippery-ness of synthetics allows the roller bearing balls to slide around in the races rather than roll. This sliding then flat-spots the balls and chews up the bearing.
Sounds more like a crappy bearing than an oil problem to me.
Doesn't HD market a Screaming Eagle synthetic oil?
One of the few things I've found in a Goggle search:
rec.motorcycles.harley