Funny one this, my back window fogs up briefly when accelerating, presumably from the exhaust. Only happens when engine is cold, and the outside temperature is cold and the air is damp.
Is this something to worry about ? There is no muck in the expansion tank, and the filler cap is clean so doubt it is head gasket.
Is this something to worry about ? There is no muck in the expansion tank, and the filler cap is clean so doubt it is head gasket.