FWIW, I have a '17 F350 DRW,cc,4x4 w/4.10 gears and get 8.5-9 towing and 13-15 around town and close to 17/18 if I really baby it sightseeing. Towing a '13 BC 3560SS maxed out at 16K so total combo is around 24K. I feel that both Ram and GM get better mpg's, but we all love what we drive, so...