Hi thank you for the reply i am in the process of stripping the engine at the moment i have removed the turbo and found no 4 exhaust port very oily and i thought turbo could spin a bit easier than it does but the outlet of the turbo to the cat is not oily or carbend up at all ??
The oil does not smell of diesel to be honest and its viscosity seems ok i am about to remove inlet manifold when i can and look from that side then i will go for the cylinder head.
I haven't drained the oil yet as i cant get the stupid sump plug out i think arnie tightend it lol