Originally Posted by rcounts

Based on his description (return line that goes from the oil separator in the air cleaner to wherever it goes [it goes to a hole in the horizontal surface of the upper oil pan, BTW]) I'd have to disagree.

He's describing the turbo drain line, not one of the oil cooler lines. Those are located on the opposite side of the engine running from the filter housing (rear of the ending on the driver's side) to the cooler (beside the radiator) and back...

But you are correct that a ruptured oil cooler line is an early death for a turbo motor. From what I've read if one blows at freeway speed the bearings - and therefore the crank and rod assembly - in other words the whole motor - are reduced junk before you can pull over and shut it off.