Hi Marty,

Lying on my back with head under the engine, I did look up above the seam of the oil pan, at the back of the engine (I am calling the portion most rearward the back), and was interested to see the "back" side of the engine dry (while the entire portion below the seam was wet). During this examination, I noticed what I am fairly sure is the turbo oil line, a metal tube about 3/4" in diameter coming at an angle from the left and slightly forward, going into the block at a downward angle (towards my face). Recalling that the turbo line can leak oil, I put my fingers up there and they came back dry. The seal was replaced at 91K miles. I dried everything off and will check it again soon.

Don