You shouldn't really put grease on wheel bolts
ooh opps! Whats the reason behind that?
When you torque the bolts they'll be over-torqued due to the reduced friction.
As usual, I will dispute this
It doesn't matter with wheel bolts, otherwise VW would put a torque wrench under the boot mat, instead of a generic wrench that people jump on by the side of the road.
The price I had to pay for previous owners not using copper grease on the wheel bolts, was me having to buy an M14 tap to chase all the threads out. One wheel bolt on the rear (and it's always the last one isn't it) needed a 40" breaker bar to loosen off. Corroded to hell.