| MPG Towing 13,000# 5th wheel I've got a new 08 LMM and seem to be getting about 10-11MPG towing my 37ft 5th wheel with 4 slideouts guessing about 13,000 lbs. Getting ready to put a S&B cold air intake to see how that helps. Getting about 18+ highway at 70MPH, 14-16MPG in town depending on how well I stay out of that damn accelerator pedal. |