csutton7 said:usually it's a rubber or plastic plug that's stuck into the oil inlet and outlet(drain back)--but if you know you removed them then maybe it's a bad seal---I think I'd work on the fuel prob first and then see what happens to your other issues--god knows you must be pulling your hair out--chris
I'd add that IF you have fuel in the crankcase, it's possible that you are experiencing enough dilution to where the seals won't prevent seepage.
What seals a 40wt oil will not always seal diesel fuel-- true?
jlh