Howdy Y'all, I'm looking at an'04 Excursion Diesel 4WD. I already have an F250 7.3 Diesel. I'm curious to find out what I can expect from the newer 6.0 liter with 4WD. I've heard that you loose some mileage with 4WD. I'd also appreciate any other information y'all may have on either the vehicle or the engine. Thanks. Tom May