Well I haven't had a duramax very long but my wife has never understood the diesel thing. Whole reason I started to drive truck... She don't get why it gets me goin, grinning like a retarded ape pulling a hill with the old 3406B lugging covering the road with smoke and the turbo hollering echoing thru the trees when I dump the throttle and grab another gear.... O well. Bout went ballistic when I told her I was gonna put a stack in the bed of my new truck....lol