We hauled round bales this weekend a lots of them (238) to be exact.Two identical trucks 4 door 4x4 duallys with flat beds one dodge one chevy. Dodge bone stock chevy dpf deleted and banks 6 gun level 3. same trailers same load (16) bales. The dodge would effortlessly start moving in the field while the chevy would take at least 3/4 or even more throttle just to get started. On the road not even close the dodge was all field chevy would just dust it. Question is what make that cummings move so easy from a dead start?