2007 Dodge dually, 2 wd, 6.7 L - 6 speed auto. Run in 5th gear with tow/haul on and exhaust brake on for the down hill side. Pulling Cedar Creek 36RD5S, scaled at 16,684. On flat, like Kansas, Illinois, Indiana 14.4 to 14.8. Tennessee Hills 13.2 to 13.8. New Mexico/Colorado rocky's, 13.6 to 13.8. All without heavy headwinds. Came today from Evansville, IN to Altamont, TN, 11.6, had 25 mph headwind, with 35 mph gusts. Not the most pleasant drive, but mileage not bad in it.
Mike and Judy
Wherever we are parked is our home
2009 - 36RD5S
2007 - Dodge 3500 6.7 Cummins
May God bless