Looking at a used 2017 Nissan Titan XD PRO-4X with the 5.0L Cummins diesel. Anyone have input on this motor? Reliability? Fuel mileage? I know a certain person here really likes the Nissan Titans. I want the heavier set-up of the XD version but since the 5.0L Cummins is a relatively newcomer in the diesel world am a little concerned about the long term reliability of this motor. For reference, I've got a 2002 Ram2500 with the 5.9L Cummins and like the diesel performance....I've got just over 200K miles on my Ram. The motor is holding up well but the body is really showing a little long in the tooth.