It’s a new 6.7L owner’s pursuit of finding out why his truck is so great. Ford and GM should do something like this too.
I found Part 4 pretty interesting. And I had forgotten the difference in emissions between the pickups and cab and chassis models. Part 4, Emissions explains that cooled EGR, a NOx absorber catalyist, and DPF are on the consumer (pickup) version, but that SCR is added to the mix for cab and chassis models (commercial use trucks).