Finally replaced the M60 valve cover gaskets...

[whiskychaser]

The trick with an M60 is probably not to use synthetic oil as the valve gaskets are only butyl. It is possibly that BMW have upgraded the OEM gaskets to viton as they did on the M52 and M54 motors, but I'm yet to find out about it.

Just a word of warning about Viton, chaps. If it is subjected to high temperatures (such as a fire) it can combine with moisture to create hydrofluoric acid. That is one of the nastiest substances you are ever likely to encounter

[genphreak]

Just a word of warning about Viton, chaps. If it is subjected to high temperatures (such as a fire) it can combine with moisture to create hydrofluoric acid. That is one of the nastiest substances you are ever likely to encounter

Interesting, thanks whiskey. Never burned any myself (yet), but an engine fire causes a lot of nasty pollutants, that's for sure.

Viton does make for a far better, and reusable seal though :-)