Quote Originally Posted by billb
I didn't notice it until this morning. I had moved it around in the driveway to let the Mrs. get the 525 in and out of the garage. Two puddles about 2"diameter each. Opened the hood on the 318is and saw evidence of slung oil on the hood pad and the top surfaces of the engine. I'm guessing oil filter housing o-ring at the moment, as I have not replaced it yet. Any other guesses on the M42? Didn't seem to be leaking this morning, but I never really got it warm on my drive to work...
This is very likely to be the profile gasket on the engine which is a known weakpoint on the M42 lump.