crismateski
American Adventurist
My '04 2500 Hemi gets about 12.5 combined mpg with automatic trans, 4.10 gears, and 34s. This was before the fancy 6 speed transmission and VVT and stuff so I don't doubt the newer Hemi trucks will do significantly better.
The vvt is only on the 1500. Before I had the Wagon I had an 04 2500 hemi 2wd and it was about 12-15 with the 4.10. The extra weight and the 4.56 really kills the mileage of the wagon