[wasserkuhl]

thanks guys for the comments, the sheen is actually unburnt fuel *slaps forehead, I have a chip in it and intake / exhaust improvements. After careful analysis with an expert we worked out its fuel.....

I have changed the oil to castrol 10w 60 anyway as I have gotten some very good results with it.

i would like to get some of the Castrol GTX 20w 50, however we don't have it down here :-(. only 15w 40.

Anyway, keep wassergekuhling guys and thanks!