Those that have tuned or programmed

Coolant still flows through the EGR cooler regardless of whether the EGR valve on the other side of the cooler is open to let cooled exhaust escape into the intake or not. You also have coolant cooling down the electronic turbo actuator which gets very hot.

I don't care about the surface area of the new Ford's or Ram are and don't want to make this into a fanboy p!$$ing contest thread of comparing trucks neither if us own or drive. This thread is about tuned diesels and how well they tow at different power levels which I am providing my own real world experience on.