Moparmaga2, I remember reading your horror story with that CAT engine. Nobody deserves that much bad luck. Your situation really is rare but was very real to you.
In the 7.5 yrs. in our '08 Dynasty, we never had a show stopper with our 425 hp Cummins with the particulate filter. The filter regenerated normally over 70,000 miles and now has a new owner that I expect will have good service.
I'm hoping that we have the same service out of our new coach, we'll see.
Safe travels and I hope the new 'C' gives you no trouble and good traveling memories!
MM.