Quote:
Originally Posted by rfuerst911sc
The drain plug on the Duramax is at the back of the pan , so having the front higher helps in draining .
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No, it doesn't. Anything behind the drain plug, (in the engine block or elsewhere), will not drain. Don't believe me? Drain it on the ramp or w front higher and then jack up rear w drain plug still removed, observe how much more oil comes out.
I'm obsessed w maintenance and this very subject. I also believe that the most important drainage is the last stuff that comes out; think of the dirt or sediment in the bottom of a swimming pool or drain pan at the end of a draining. You want scalding hot oil, pouring out rapidly and draining as completely as possible.
