Hi, I am new to the deisel world am and I am looking at upgrading from my Sierra 1500 with a 2500HD and the only real option seems to be a deisel engine. I will be using it for hunting and fishing, but mainly driving back and forth to work. I do haul some and pull a flat bed trailer on occasions. Can anyone tell me if upgrading this is worth it. Like I said I am new to the deisel world and I have heard lots of conflicting information about the costs, up keep and so forth. Any information would be grateful.