I currently own a 2005 Dodge Ram 2500 4X4 diesel. I bought the truck new 3 years ago and have been very pleased with it. The truck has never been back to the dealer for anything. It gets about 19.5 mpg in mixed city/highway driving; 22-23 mpg in strictly interstate driving empty; and got 13.8 mpg on our last trip to the beach pulling our 27 ft 5ver. The truck is fairly easy to do routine maintenance on. The oil filter, fuel filter (it only has one), and the air filter are all relatively easy to get to. Actually, I'm very satisfied with the truck. BUT; it has the 6 spd manual G56 tranny, which for me is fine, but the wife won't even try to drive the stick shift. When I bought it, I thought that I could get her to drive it because in her youth she had owned a Subaru with a manual. But NOOOOO! She wants an automatic so that she can drive it if necessary. SO. . . since the dealers are all offering great deals right now, I thought I would start my research again. When I bought the 2005 Dodge, I had talked to a lot of people and some diesel mechanics and guys that were taking diesel classes at the local Vocational - Technical school. They talked me out of buying a Ford because of the problems they had all seen with the 6.0 Powerstroke. I'm glad they did, because the Dodge/Cummins has been flawless. BUT, having been a Ford guy in the past and since the new 6.4 is supposed to be much more reliable, I thought I'd give the Fords another look. I love the looks, inside and out, of the new Super Dutys! My questions to you guys are: Since I do my own routine maintenance, how hard is it to get to the oil filter, fuel filter(s), and air filter? What kind of fuel mileage are you guys getting with a F250 4X4 SD and the 6.4 Powerstroke? Has the 6.4 lived up to the hype of improved reliability? An article I read in one of the diesel mags said that the 6.4 had been through more extensive testing than any engine that Ford had ever offered. Does it show? What about the automatic tranny used in the Super Dutys? Are those proving to be reliable? I don't plan on doing any mods so the auto will not be taxed with extra hp and torque. Please; only unbiased opinions. I have owned Fords and Dodges (and for that matter, a few GM products too). I like both Fords and Dodges. Never had much luck out of GM stuff though but that's beside the point. The Ford pickups that I owned in the past were all gassers but were great trucks. If not for the poor rep of the 6.0, I would probably have bought a SD in '05. This is not my first Dodge either, though, and I have had good service out of the Dodges I've owned, especially this '05 HD. Just want some honest feedback from you 6.4 SD owners as I start looking for a new diesel WITH AN AUTO TRANNY.