Towed something the first with my 15' XLT w/ the 2.7 and a 3.73 rear end. The whole setup weighs about 3000#'s total. Towed it from Dania Beach, FL to Duck Key, FL and back for the weekend. Going down in lots of traffic i only averaged 13MPG's but on the way home in nearly no traffic i averaged 17MPG. Couldn't even tell its back there. Very happy with it, amazed everytime i drive the truck. Love the 2.7.