Since I have now actually done an actual cold start on my DURAMAX, I figured I would post the video here. This thing started better at 8 degrees outside than my 6.5 would at 70 degrees outside. I couldn't imagine a diesel starting much better than this one does in the cold.
http://www.youtube.com/watch?v=7KybncEUsN0
http://www.youtube.com/watch?v=7KybncEUsN0