Duramax and towing a 10600lb 5th wheel
This is a question about the trans. Should I just leave the truck in "D" and go or should I be in manual mode and restrict it to 5th gear? The truck seems to be laboring on slight uphill grades but wi...
Forum Discussion
On the freeway and close to flat ground, just put it in Drive. In town, always tow/haul. Mountains, or anywhere it is hunting for a gear, tow/haul.
