Hey guys, first post but not new to the site. been looking into buying a diesel lately and the only concern is the varying mileage between dmax owners. some say they baby the truck and only get 12-14mpg. While on a few dodge sites, most everybody gets 17 + with the cummins. I'm a chevy guy but don't want to give up my 04 2500hd gasser to only get 2-3mpg more. Any thoughts or are the cummins guys exaggerating there mileage?