What do you guys tow with your Dmax? Any problems? Mileage? I tow a 36' 16,500lb 5th wheel travel trailer and no problems to date, 32,000 miles. Stock except for 285 BFG's, which are too big to tow that kind of weight and soon to be history, and Air Lift Super Duty bags. Average fuel mileage with 265 BFG's 17-18mpg unloaded and average 13mpg towing. With the 285 BFG's....about 10mpg towing and the Dmax screaming "NO MORE,it hurts oh God it hurts".....