cossie 4x4, greens, stage 2, 26psi. since changing oil from cas magnetec 2 mobil 1 15:50 started gettin oily gunk in the header tank, there is no sign of water in my oil at all, group a head gasket showin no leaks or stains also fitted is a swirl pot and a oil seperator can anybody shed any light on this.... cheers.

 

i got simaler prop could be the rad thats filled with oil from head gasket failure are u using std intercooler as it seems it could be too much boost and head lifting i cant see anything else????????

i am changing head soon as guides are fooked and dreaded piston slap is driving me nuts