This past weekend, I pulled the marching band trailer to a competition and back. It's an enclosed 24' trailer that weighs in at 7,000lbs fully loaded but, we were probably a little less than that since we left some extras off the trailer. I filled up right before I got to the school. It was an 180 mile round trip and I was running 65, 70 at the most. The Virginia hills on I-95 had me downshifting often. When we got back, the EVIC said 9.8 mpg. The wife started the truck to warm up just as we wrapping up unloading and when I got in the truck, the gas light was on. So, towing almost 7000lbs on a 180 mile round trip cost a tank of gas. Acceleration off the line was a little slow with the 3.21s and it bounced more than I liked but, other than that, it did fine.