Where I work we have 6.0L F350's from 04-07, why do the 04's and 05's run out better than the 06's and 07's.

I drive an 04 daily and when I get in one of our 06 or 07's they feel like dogs weather a trailer is hooked up or not. The 06 and 07's feel like they are dragging an anchor.

Any ideas?

 

We have two 2007s, both broke 50k in the last few months, both pull like pissed off bucking bulls roped to an outrider's saddle horn.

Bad maintenance, poor driving habits, damaged components, EGR still being installed, long idle times killing the turbos, could be a thousand issues inside the engine. Outside the engines, could be drive train, gearing, weight differences, tire sizes, or a hundred other differences.

You asked a complicated question in simplistic terms, details would help flesh out the answers.

 

What he said.