2017 GMC 6.0 Vortec - Manual Shifting?
I notice when I am towing my RV, my truck seems to try and down shift sometimes when climbing a hill before it should. Do any of you guys manually shift to get more power or save gas in these situalt...
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I've tried to use Manual mode to manually shift up through the gears... and it doesn't work well. It's not like the "flappy paddle" shifters on performance cars. The reaction is severely delayed.
