Tow Haul Mode
I have a F350 4x4 long box diesel. I always used tow haul when I towed our fifth wheel. We have now downsized to a tow behind TT. The friends we camp with have TT and they never use tow haul beca...
Forum Discussion
My 2015 diesel 2500HD Silverado locks out the highest (6th) gear when in tow/haul mode. I could get about 1 to 1.5 mpg more if I didn't use tow/haul, but I side with those of the opinion that it is easier on the transmission if I use tow/haul.
No, it doesn’t lock out 6th gear.
