This is true for the DPF system to work the truck needs to work boost pressure and heat is what cleans it. Idling a new diesel and using for groceries and short trips are no good
Spent a few months back in 96 building equipment for the Cortez mine. There was a casino called Klondike with a full sized polar bear mount right inside the entrance.
I like mine as my commuter running to town it’s easy to get around the lockable tonneau cover makes a decent trunk. Small loads of landscaping material etc it’s handy. I do have a 3/4 ton truck for hauling and towing if needed.