they get in bad shape with the soot that is for sure.:tu:

that just gives you guys that dont know what the regen is doing something to think about. worried about warranty ya warranty is good but what about at a 100k when your warranty is over and your motor is trash? all because you left the emissions when you could have saved it and it last 300k. thats the way i see it if you guys really look. most the trucks that are having probs have the emissions. and 90% are exhaust probs or turbo probs just throwing it out there

I had about 12,000 mines on mine when I did my deletes, it looked about like that picture. I think Dodge/Cummins were in such a hurry to be the first to meet the new emission standards, that they didn't do enough R&D on their smog crap...

diesel dump into crankcase
 

I feel lucky to have a guy here locally that worked on the shop floor for Cummins and Pacar in Seattle. This guy is a walking encyclopedia of diesel knowledge/ He told me when I asked him about the regen message that: system builds up soot and diesel particulates then a processor dumps diesel fuel in the dpf which is then signaled to fire up to 1400 to burn it off and the reside that is left then dumps into your crankcase. He hates that system and argued with many an engineer on how crappy it was. He recommend that I do an oil change every time I got that message of "regen" on the overhead. didn't matter if it was 500 miles since the last one. He feels the mods and tuner are a much better option that take full advantage of the diesel engines capabilities and it will keep your engine a lot cleaner. The emmissions and other things done in the last 20 years have done nothing to help the engine perform better and ad to it's longevity. I did my mods about the time I got the "replace dpf" message, seems depending on your driving habits it fills up and burns out and has to be replaced after certain number of cycles at a cost of "$2500" quoted by the Dodge dealer!!! That paid for my mods and tuner and the mileage is a bonus. :c: