I couldnt finf Castrol Dieselall last time so i used drydene deisel oil which seems to disappear at one quart per week. before a recent trip i accidentally overfilled, maybe 1.5 quarts or 2 quarts too much. I had an 83 Ford Escort whose seal leaked tons of oil everyday after i overfilled its oil pan on a lonely Lousiana highway 18 years ago..Will this happen on my Mercedes now? This is my prize possession, I rebuilt the engine myself.