Hi, my wife has given me the green light to buy a new truck if I want one. I presently have a '97 Dodge w/CTD engine & have had good luck with it. I'm looking at the duramax ('06 leftover,LBZ engine) because of the better mpg's & GM backs their warranty better than D/C. My question is: What is the factory warranty on the engine? I thought it was 5yr./100K. After some reading of other threads, I'm hearing 7yr./200K. What is it?? Thanks for the help, John :)