Damn! Sounds like I should have been lectured on more than just (not) getting groceries. Ok, let's see:
1) 52k
2) No
3) I monitor the DPF gauge, and it reads 0 most of the time. I checked it on the way to PHX and it was 0, but didn't check on the way back. If the truck tells me to keep driving due to a regen cycle, I drive it until it's completed. Otherwise, I'm not sure I'm answering the question.
4) I don't know
5) Stock replacement
6) The oil changes have been at the dealership.....I believe they are using Shell Rotella? Correct me if I'm wrong.
7) Nothing other than a parking sensor that got hit by a rock
3. This is a window into what might be going on. The truck’s regeneration cycles are designed so that they operate in the background. Under normal circumstances, the truck doesn’t tell you to “keep driving” unless those regeneration cycles are either not effectively cleaning the DPF out, or they are routinely interrupted and not allowed to finish. If you happen to be on the DPF gauge when it goes into regeneration you’ll see a notice, but that notice doesn’t tell you to continue driving. When you say it “tells you to continue driving”, is that message popping up on your dash screen along with a “ding” or “chime” sound?
4. If you’re not sure how often the truck runs these regeneration cycles, it would be hard to determine, based on your input, wether or not your truck is running the cycles more frequently than it necessarily should. Which leads me to number 5….
5. If you do now know which brand and model number of engine air filter you are currently using, you may want to pop open your intake air box and check. Since it sounds like, based on your response to #6 that you have your dealer do your service work, it is important to note that there is a glitch within the mopar parts network which tells dealers to use air filter # 68517554AA. This is the incorrect filter for a 2019+ Cummins powered ram HD. The correct air filter is # 53034051AB. The incorrect air filter in these trucks (like 68517554AA) can cause the truck to run poorly, including turbocharger underboost conditions and more frequent / inefficient regeneration cycles. If the dealer installed the wrong air filter, that could be part of your problem. I would highly recommend checking the air filter for a brand and part number. Report back what you find.
6. I would inquire with your dealer to check which brand and weight of oil they’re using for your oil changes. If they made the mistake I mentioned in #5, then they may also have made a mistake by using an improper viscosity of oil. It isn’t uncommon for dealers / service technicians to see a diesel and automatically use 15w40 as the engine.
15w40 can not be used in a 2019+ Cummins powered Ram HD. I would confirm their brand and viscosity used and report back. It should be either 10w30 or 5w40 diesel engine oil.