The Dodge issues all pertain to bad SW and Emissions crap. My buddy had bought his truck and the first week it regen'd, then bam, never ran right after that. It was at the dealer more than he drove. After two turbo's and entire exhaust system he finally figured out that his 2500 was above the 8k gvw for Oregon and didn't require emissions. So off to the Diesel performance shop and off with the garbage. Never had a problem since.
Now, as for Fords, early 6.0L don't like to be messed with and have faulty parts from oil and egr coolers which pop head bolts. But later fords with the regen crap, oh man, dangerous.
First time the local fire department had an F450 go into regen during a run to a call down the freeway, the shop mechanic thought the Driver was crazy when he radioed in that he couldn't get over 35. City came down hard on the dealership they got the truck from until they found out what it was doing. No one knew. My understanding is something was worked out so Firetrucks and emergency vehicles don't regen. I never got a straight answer as the city won't talk about it. But again, in our state it wouldn't have to have it anyway according to our laws.
