33MPG is insane for a truck like that. My 2006 2500HD with the Alison trans gets 17mpg on a good day, though the towing and payload capacity is quite a bit higher than the new 1500. I’ve had 3,200 lbs of boulders, 3,500 lbs of tile, and a bed full of dirt without issue. I’m never clear on what the weak-link is in…