The first place to look if it is engine oil is the oil sender for the oil LIGHT on the left rear of the motor. The sender is notorious for developing a leak. It can be resealed. Just remove it, clean thoughly and reassemble with silicone sealer (sensorsafe of course!) Or you can replace it. When it leaks it runs down onto the rail around the crankcase and can then appear to be leaking from somewhere else. The wire that goes to it also gets burnt so you may have to replace a piece of it. If the trans is leaking determine if it is gear oil or trans fluid. MAKE SURE TO CHECK THE FINAL DRIVE LEVEL! It is separate from the trans in automatics, not like 5-speeds where the trans oil and final drive oil are the same. You must remove the level plug on the left side and stick your finger in to make sure the level is no lower than 1/4 from the edge. Do not overfill and use #80-90 gear oil. If it is trans fluid leaking you must examine the transmission externally to try to isolate the source. A common source is the gearshift cable but any external seal can leak. Do not overfill as that can create leaks. Refer to G:04:02 for the proper procedure for checking auto trans fluid level. David Teitelbaum vin 10757 --- In dmcnews@xxxx, Peter Lucas <lucas@xxxx> wrote: > In the course of its long winter's rest, my D has developed a > non-trivial oil leak. This was completely out of the blue--the engine > didn't leak at all, then one day there were puddles on the floor. > > It appears to be leaking from between the the engine and the (automatic) > transmission. Do I assume correctly that this is likely the main seal? > If so, how big a job is it to repair, and what is the easiest procedure? > > --Pete Lucas > VIN #06703