I fitted a GSF sump gasket to my Golf a bit back, and it seems to leak a bit of oil. I've since bought a VW one, which is copper coated with rubber, whereas the GSF one was a thick paper type. Do you or do you not put sealant on metal / rubber gaskets?
I replaced the rocker cover gasket on my GTi 8v with a genuine VW item. It was a 1 piece gasket not the 3 piece gasket which I think was originally fitted and which leaked badly from both back corners. I just cleaned all the mating surfaces so they were clear and dry - no leaks as of yet and I'm V happy with that thanks! The only prob I had was that the newer VW rocker gasket had it's squish bands in the gasket - meaning the studs on the head had to be changed for ones without shoulders (these did come with the new gasket though).
If I have to then I use a bit of copper grease - but only to keep the gasket in place.
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