I've held a class A CDL for a decade now and work with heavy trucks every day. If someone gave me a Cummins, I'd trade it in on a gasser. My style of driving would kill a modern diesel, and not be great for an old school oil burner either. They are not made for my 5 mile commute. I need my personal vehicle to do everything, and that includes commuting. Plenty of people that picked up diesels when they were "cool" found they didn't match their usage, and start to pick up big repair bills because of it.