Yes. If you're worried about pushing the crank too far up the taper, the way to fix that is by reducing the clamping force, not adding a bunch of friction.
Also bollocks?
No. A stem clamp is a different kind of fit. You might want something in there to dissuade electrolytic corrosion, but it doesn't need lubrication.
Yes. If you're worried about pushing the crank too far up the taper, the way to fix that is by reducing the clamping force, not adding a bunch of friction.
No. A stem clamp is a different kind of fit. You might want something in there to dissuade electrolytic corrosion, but it doesn't need lubrication.