Got to tow for the first time tonight. It isn't that big of a trailer but it was loaded almost completely full with firewood. I am guessing somewhere around 3-4000 lbs with the wood and trailer. Maybe more not really sure I guess.
The truck pulled great. Very smooth acceleration under load and not bad fuel milage considering I only have 600 miles on the truck. Evic told me that I was getting 12.6. Engine brake worked very smooth as well. I couldn't be happier with the performance.