frankenwrench
overkill is under rated!
Lol. My 6.9 took several beatings a week at 10-12 psi on 4 hour trips just to grab and go with maybe 30 min to an hour of off time before heading back another 4 hrs. Thats with an empty 24 ft goose that weighs 4000 lbs going there and on the way back adding another 6k or so to the trailer. Did that fir two years straight. Now she just hauls in town within 30 or 40 miles of the house. Still runs strong and no real issues. I think my buddy borrows it to haul his welding trailer around more than I drive it anymore. But as you know, results vary from person to person, and truck to truck.