I have a chinese truck. It has a diesel engine. It has oil in the radiator due to a bad cylinder head gasket. I had replaced it and fixed the over heating issues which was causing the head gasket to fail. After a couple of months and less than 10k kilometers my gasket failed again. Air is blowing out of my radiator, no water getting mixed in the oil, just like before.
Why did it fail so early? I did not clean the radiator thoroughly, and it pretty much had a lot of oil sludge, would the oil in the radiator damage the gasket?
Apologies for the incorrect entries, Foton is not listed below.