Thanx for your input CC.

I hope so. With that Harley my friend had, the silicone jammed up the oil pump, which then sheared a small woodruff key and stopped . Harleys are a 'dry sump' so when you lose the oilpump, the crank (and everything else) runs dry very very soon. Gives me the willies just thinking about it!
I'll bet the turbo bearings on an MB wouldn't like shreds of silicone, but at least it is soft crap rather than hard crap, like metal chips etc..
Alberta Luthier