Going back to gas! My last four rigs have been Diesel. The last really good one was a 06 or 07 Silverado without DEF. That thing was a tractor!! Power Power Power!! It burned up in a Fire and i bought a 2011 Silverado that I just didnt have luck with it. Emission codes on long drives and into limp mode was a common ocurance so I sold it. The last was a Ram Cummins and it was pretty awesome but going anywhere south of the boarder was a NO GO because of lack of quality ULSD and DEF.
Picking up my New Ram in a week and going with a Gas Hemi!
I rarely tow but do carry a couple thousand lbs in the bed!