I owned a 12-valve Cummins and liked it, simply because it was simple, efficient, and dependable.

I've also owned delivery trucks with common-rail systems and have experienced numerous engine failures related to stuck injectors. I refuse to buy any more common-rail diesels. For my business fleet I've swapped over to small GMC box trucks with 4.8 gas engines. I retired a GMC with the original gas engine in January at 496K miles, and another turned over 400K miles last week.

If I were buying a new pickup I wouldn't consider a diesel with all of the DPF or DEF garbage on it. I owned two 2008 Dodge Sprinter delivery trucks with that crap on it and they were constantly in the shop. And that whole "Regen" crap is for the birds.

I'm in the market for another 1-ton pickup truck right now, but it will either be mechanically-injected 12-valve or Hemi powered. No more computerized diesels for me.