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You may in fact be right; I just would hate to find out the hard way that I was pushing it too long! With the noted exception of the valve stem seals. Do VW's have the same problem? Can you guys get teflon ones? They shouldn't be all that different...
Very interesting to hear about the VW CR issues...[/b]
I'd guess that VW, Porsche and Audi stem seals are all the same. For VW, yes, we can get Teflon (white), but I wouldn't recommend them since NO oil gets by to lube the guides. The black rubber ones simply can't take the heat in an IT engine (or many street engines for that matter). There are some reddish brown ones that come in some otherwise high-quality gasket sets -- they're better than the black but still not best IMHO (although I'll still use them in a pinch). The best bet is the Viton (usually green seals) -- they can take the heat but still lube the guides and last for years.