Hey folks, I am soon going to be in the market for a new Pickup. I currently tow a 2004 27' Citation TT that weighs about 7300 lbs ready to go camping.My 2001 4.7 Tundra still does a good job pulling my trailer but its at 140,000 miles and at some point we want to upgrade to a 5th wheel. I have seen milage as low as 4.5 per gallon towing into the wind and the truck is working at the top of its performance. What I am looking for is real world experience from folks operating one of the trucks i'm considering. My top pick is a Crew Cab F250 6.7 Diesel However unless you want just a seat and a steering wheel they be be pricey. The other trucks I am considering are the F150( ecoboost and 6.2) the GMC sierra 6.2 and the 5.7 Tundra all crew cabs. I really want to know realistic towing millage and overall performance with rigs of similar size and weight. Thanks in advance for the input. I have seen some interesting videos on you tube but I'm not getting the info I am looking for.