Shawfamily6 wrote:
It was pretty windy and raining that day. The next day we got closer to 7.5. I have seen a few of you mention different gears. Should we be pulling in something other than automatic? I think I might be confused. I know you can take it out of automatic, is that what we should do and put it in a different gear? If so, what gear do you recommend? Sorry if that is a silly question! Thanks for all the help!
If your not in rolling hill country or stop and go traffic, with a 7500 lb trailer behind a 6.0 GM 2500 take it out of tow/haul. Don't use the tow/haul on an interstate or other 4 lane highway. Its not needed and is probably what shot your mpg in the foot. Leave it in D and drive it. When you get in hill country or stop and go traffic kick in the tow /haul, take it out of D, and shift manually. Drive it like you stole it. Wind it up to 4500/5000 rpm. It really sounds good up there.
The owners manual will tell you what conditions to use the tow / haul button and trying to get the most mpg is not one of them. It won't hurt the truck whether or not you use the tow / haul button, or if you have it in D or shift it manually with the rocker switch. Those trucks are made to tow and haul. 7500 lbs behind one is an easy day for the truck.
