I will bet the oil leak is from the oil filter canister gasket.

it all depends on which side of the motor it's from, but MOST leaks are easily found and fixed. passenger's side, could be PCV seals (there are 3 of them) could be turbo oil return... driver's side, oil cooler lines, oil filter lid/canister seals, oil pressure sender, IP...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!