THAT’S GOOD INFO!..............
Sorry for the late post, Mine is the ‘02 and gets the best mileage of the later models. (Averages 21 mpg) And it has the one ton frame.
It tows at better than 15 mpg and still does not leak oil anywhere and I go 8,000 miles between changes and never have to add even a quart in that time. It has been by far the best vehicle I have ever owned. The body is also extremely tight and quiet to this day. (Full Leather interior and LT mag wheels with memory seats.)