Forum Discussion
fireman41
Jun 07, 2016Explorer
transamz9 wrote:Cummins12V98 wrote:coolbreeze01 wrote:
Downshifting and backing out of the throttle will help your engine/transmission run cooler. No need for high revs but you don't want to lug it either.
Computer will do the job shifting when needed, just hold it to the floor. Aisin trans stays cool in any conditions. Pic is pulling long 7 percent grade west of Golden Colorado, 32,950# per Cat Scales.
Most of us don't need to hold it to the floor to pull our units up grade. With the torque in these trucks I can often pull grades at 15-1700 RPM. If I left the computer do it then that's where it stays. It's easier on the trans to lock it down in 5th and let'er cool.
You know those big horse power and torque numbers are made and wide open throttle.
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