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Originally Posted by Savington  Just finished my first highway tow and I am seriously considering selling the stupid truck. The truck is an '05, crew cab shortbed, totally stock all the way down to the 245s on stock wheels, towing a 7500lb 26' enclosed car trailer. Doing between 60 and 65mph the entire way, I just averaged 11mpg. My damn 5.3 Suburban can probably beat that. Fresh fuel filter, too (500 miles on it now, NAPA Gold). I am getting MAYBE 14 around town, 17 unloaded on the highway cruising at 70.
What can I do to bump this up, aside from selling it and buying a Cummins? My roommate's '94 Dodge averages 16mpg pulling the same trailer at the same speed. |
I have a 2005 crewcab, short bed, 4X4 all stock. my unloaded mileage is 20-22 MPG driving 60-65 in rolling terrain. I tow a 10K-11K pound 5th wheel and average 12MPG driving 60MPH in rolling terrain. In flat interstate conditions, my towing efficiency increases to 14MPG. In mountainous conditions, efficiency deteriorates to 9-11 MPG.
Terrain and wind conditions, as well as your driving style, will have a significant effect on efficiency. You should also check your tire pressure. I operate my truck and 5th wheel at max recommended pressures: 80-psi in trailer and truck rear wheels; 55-psi in truck front tires.
tatca
2005 LLY, crewcab, 4X4, all stock