Hello, I decided today would be a good time to clean my throttle body on my 1.4 16v Lupo. I had abit of a shock when i took of the oil breather pipe that goes into the airbox as i did not expect to see this sludge in it. I was thinking maybe the head gasket is going but its not using water, does burn abit of oil though. Just wanted to get some advice as never seen this before What is the best way to clean it out? i gather pipe shouldn't be to hard but what about top of airbox? thanks