Hill Climbing
Just want to run this by some of you, at the present time when I climb a (Hill or Mountain) I let the Allison do the changing or down shift as needed, if it don't down shift at 1400 RPM I will down sh...
Forum Discussion
wolfe10 wrote:2oldman wrote:
Downshifting before the hill is easier on the tranny.
Would like more information on that one-- this is an Allison 3000 series. Torque converter is locked in all higher gears.
The only reason I would downshift (down arrow) is if the transmission in hunting between gears or you are overheating.
The OP is doing it EXACTLY correctly (per Cummins): As long as you are not overheating, let RPM lug down to peak torque RPM before downshifting.
And by doing THAT....your highway speed can vary considerable. Getting to the top of the hill first isnt any big deal but maintaining a constant...fluid like...highway speed is MUCHO safer
