I have changed the oil in my 850T 6 times. On two occasions, I have found oil all across the back edge of the oil pan, and on all of the oil pan bolt heads about 3" above that back edge. On this occasion, the second, the cross member of the support frame that is about 10" back from this edge also had oil drops all the way across it. The engine oil level was *not* substantially down in 3k of driving.

On other cars, I rarely changed the crush washer and it was never an issue. On the 850, I am wondering if it is crucial. I changed the washer the change before last. The plug did not appear today to be as tight as I tightened it last change. This was also the case the first time I found oil everywhere. Not withstanding my other posts regarding where I buy my oil filters and what oil I use, I would like to hear if others have noted drain plugs that didn't stay tight, new crush washer or not. Also, what torque (approx) do you use?Feel free to box me around the ears if I have been committing a cardinal sin with the washer. Thank you, Don