Why does this thing leak in the first place?

I was looking at mine just now, the leak seems to be getting worse. It looks like the tube exits the turbo then slips inside the lower tube. The lower tube goes into the top of the oil pan with a seal around it's point of entry.

Looks like gravity would be in favor of just encouraging all that oil to keep moving down into the pan. How does it manage to find it's way out around the seal where the pipe enters the oil pan? I would imagine that pipe has its end below the top of the oil pan, and I just can't figure why the damn thing leaks!

Kevin

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'85 300SD