Hi, My '73 T2 loses oil by, it seems coughing up oil through the filler pipe. The pipe is attached to the casting by a large circular collar which is screwed into place using two slots on the top of the collar. All pretty standard. It quickly comes loose and oil spills out, splattering itself on all points below. Is there a cure, e.g. gasket, which will prevent this. My engine compartment looks a mess! Graham