Poor Roger Long, on the ICW headed back north, woke up to oil and seawater in the engine pan. He just changed his oil but says the filter is not the leak nor can he see one. Anybody with Yanmar 2QM experience that may have a hunch of what the problem is? Seems to me something related to the oil change may be the problem. Does this engine has external oil lines to the filter? Any ideas? Hate to see his column end, it was very good.

http://forums.sbo.sailboatowners.com/showthread.php?t=138840