Just completed first tow....good and bad!,
As a newby, We just finished our first tow with a 2011 GMC hd 2500 6.0 gas from st louis, mo. to harrington beach campground north of Milwaukee, Ws. Trailer is about 8000 pounds. Trip was about 860 mi...
Forum Discussion
Dick_B wrote:
Sounds normal to me. We tow in Tow Haul mode and it works just like you described. 6th gear is non-existent in that mode.
I normally get around 9 mpg towing at 56 mph. You might try slowing down for a trip to see if there is any difference in mpg.
We find the engine is very noisy when under load.
I long for my good old 8.1...
Is that six speed a single OD or double OD? Can't see locking out sixth on flat land, that 6.0 should be ok in OD on flat land.
