I did a 900 Mike drive from CT to SC last weekend. Averaged about 22.3 for the trip. Actually went over 25 mpg during one 50 mile stretch. Truck was fully loaded with luggage too. Very pleased with the mileage. Better fuel economy than the v6 Nissan xterra that I had before my Yukon. Starting the return trip tomorrow. Will post an update with mileage on the rest of the trip in a few days.