Medium duty engine/tranny?
Who/what/how is this rating awarded?
Forum Discussion
I'll even through another wrench at these guys that claim to running MDT power trains in their LDT's: The tuning is different. The 6.7 PSD is tuned to 300 hp for MDT applications and the 6.7 CTD is tuned for 325 hp. Those are specifications if plan to work your engine its entire life and still get reasonable life out of it. The cranked up tunes in the pickups are great for bragging rights, but bad for longevity.
