Tow haul button
I have a 04.5 duramax 3500 and I'm not sure when to use the tow/haul button on my gear shift also using this will it help my MPG? Thanks.
Forum Discussion
I like to keep things simple and use my Tow/Haul mode when I'm towing and to not use it when I'm not towing.
Seems to make sense to me...
Seems to make sense to me...
