Ford 6.2 gas vs 7.3 gas highway gas milage

flyte63 wrote:
Anyone have real world HIGHWAY gas milage figures for a Ford Super Duty with about 3000lbs of truck camper in the bed? I’m specifically wondering about 2017-2021 F250 and F350 trucks with the 6.2 gas and new 7.3 gas engines. Reading online I see claims of similar or maybe only 1mpg less with the new 7.3 gas engine, but what about in the real world? (I know they have their place, but not interested Diesel numbers)

My 2012 6.2 gas flatbed 4x4 Fordor Ford at 100000 miles does 8-10 mpUSgal campering and 14-15 mpUSgal bob tail. Towing a 16 x 8-1/2ft tandem enclosed doesn't change it much except when the crosswind blows. Then 7 is totally achievable.