Part of the problem with the comparisons, many skew the numbers, either lowering diesel consumption or inflating consumption on the gassers. During fall cruise to see colors with my bride, straight hwy run across 401 to 35-115 n up into Haliburton saw the Ram hit 9 ltrs / 100 flat. Yes it was a relaxing cruise that is not typical of how I drive it but it sure is capable of great mileage if you give it a chance. As for the reported 14-16, even with my typical using remote start n short runs around the city, barely hit 16/100 city runs only. Open alum car trailer with a Mustang on back up to the Soo a yr ago, hovered at 16.2 for the trip up, way back with a lighter Merkur on board, hit a hair over 15.
To me, fact it's just that much better on fuel n tows better vs my previous Sierra is a bonus, just plain like the truck so much it could be worse on fuel and I'd like it just as much. Even better, haven't had any of the one thing after another problems that plagued the GM. Keep in mind, coming from a guy that figured he'd always be driving something out of the Generals stable.