Made a trip to South Dakota pulling a 16' open trailer with two 1000 lbs motorcycles two people and the baggage for four adults on the way out. Coming back there was 4 motorcycles and 4 adults. Total miles from middle Tn. and back was 3042 miles, open road speeds were 70 to75, mostly on cruise. Trans. temp reached 206 one time, only for a second, mostly 199 to 203. Outside temp was mid. 90s. It felt like we were up hill, with a wind in our face both ways. Back home the truck and trailer weight with one person and 3 motorcycles was 10580 lbs. My best guess at the total weight on the return trip would be about 12200 lbs. With total miles divided by total gal. The average mpg was 10.7. I did'nt baby it, but I did'nt abuse it. I guess thats ok mileage. The truck had a little over 3000 miles at the start of the trip. Any thoughts on good, bad or indifferent. Oh by the way this was a 2013 XLT supercab EB, with 355 gears. I hope I got all the info. in.