I bit the bullet last year & got (payments) on a '05 F-250 Super Duty with the 6.0 turbo diesel & 5 spd auto. Being my first experience with a diesel, I am not too happy. I really need more of a daily driver & tow once in a while. This is made more for haul anything anywhere, and accelerate doing it! I don't care for the clatter, and it seems to bother me more now vs getting used to it. The stink is a bit much for me too, gets in the house sometimes warmin up in the driveway 60 ft away, and into the cab too. Got to drive the 1st couple minutes with the windows cracked to clear it out. I am kinda sensitive to odors like that, and like my clean air
Also, only got 11 mpg at best, towing my med size 7 x 16 trailer with bare min in it (probably 4k total). Many say I need to do programmer etc to boost power AND mileage. The 28 gal (approx) tank on the 4 door crew cab sucks BIG TIME, especially when they say don't go under 1/4 tank in the cold. That's approx 180 - 200 miles a fillup, unless you play it too close & can't find any stations with Diesel where you are in unfamiliar territory (did it thru West VA). Got a 5 gal jug in the trailer from now on. They didn't put the $58 option for the clicker to unlock the doors, which is severly aggrevating. Going to do aftermarket on that, and see if I can get a bigger tank or reserve installed. Maybe aftermarket exhaust could help too, cut down on back pressure & leaks in system. Of course, ANY mods void the super 100k warranty on the engine.
The new V-10 seems WAY better than the early V-10's Ford has. If I could do it over again, that's what I would go with in a heart beat. The 5.4 is not enough for towing, unless 1-2 times per year on flat land. The super duty is just too much power & reliability, and trade off daily comfort for it. Makes more of a "work" truck out of it, unless aftermarket rims/tires/etc.
Might trade for an '06 Crew cab with a V-10
Suggest get it loaded too, the few bucks a month are worth all the creature comforts if you drive it every day. Last thing you need is to not be totally happy with a 30-40k purchase because of something simple left off.
PS - NO issues on cold startup, with different brand fuels & no additives or block/oil heater, down to teens in temp so far! It has 2 fuel pre-heaters on it I guess. Takes a bit to heat up on cold days, probably got to block the radiator a little.