Diesel Fuel Economy

I`ve just towed a 13k lb 5th wheel 500 miles using the Tow/Haul mode to that makes life easier on the road. It would be nice now to be able to change to ECONOMY MODE for better fule milage while milling around town enjoying my family, friends and crew cab dually diesel @ 20-25 mpg with limited cargo.
Brian L 03/01/2012
You should check into putting an aftermarket tuner on your rig that you can choose what kind of performance you want your truck to have.