Brand new titan xd cummins, only have 250miles on it and it has done its 2nd regen. Mainly been driven in town, short trips, anyone else have regen issues often? Its kind of an annoyance having to put extra miles on it by driving it on the highway so it will complete its regen cycle.
The very nature of the diesel makes more pollution at low speeds than at highway speeds with greater and more stable exhaust temperatures. I had noticed mine do more soft regens when in lower speed stop and go driving, sometimes to excess, like one every 150-200 miles. I started using Howes fuel treatment. My regens are cut down, and my mileage is increased a couple mpg. I just now turned 3500 miles.