TOW/HAUL MODE aka OVERDRIVE

[AmericanPatriot]

I noticed that when turn on the Tow/Haul Mode (without towing anything) I get faster 0-60 time, over a second faster (not that I really care about that in a Hummer), but also I get better passing ability on the highway, which I do care about especially in a Hummer. Wonder if this can hurt my engine and/or tranny in any way?

[AmericanPatriot]

I noticed that when turn on the Tow/Haul Mode (without towing anything) I get faster 0-60 time, over a second faster (not that I really care about that in a Hummer), but also I get better passing ability on the highway, which I do care about especially in a Hummer. Wonder if this can hurt my engine and/or tranny in any way?

[Hummertech]

NOPE