The problem isn't on the uphill, as the governor will keep you from blowing up the motor, but downhill is where the problem is.
Some of the autos would upshift a few hundred RPM below redline going down hill, losing almost all engine braking. As Jakes work best at higher RPM, poorly programmed transmissions will force drivers to try to sit lower in the RPMs and use more brakes, which heats them up.
While not ideal, a few 100 RPM over the redline in a manual truck when you mess up once or twice won't destroy an engine, but an unexpected upshift will heat up your brakes significantly.
Less of a problem when the transmission upshifts at the redline bs above it but still a puckering experience if you don't expect it.
I make no judgements on which is better, but I prefer manual because I don't have the option of disengaging from paying attention to the grade ahead.
Fighting complacency is one of the hardest parts of this job, and I appreciate anything that forces me to stay engaged like a manual transmission.
I do think that there is a problem with modern trucks with modern ratio axles making reverse way too fast.
Having deep reduction in a 15/18/8LL makes all the difference in backing up in tight spaces.
Personal opinion if you can't ride I mean drive stick your not a real trucker
Discussion in 'Experienced Truckers' Advice' started by Miketruckinginc, May 19, 2023.
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A better question might be..."Is the implementation of the Autoshift Transmission, as the STANDARD benchmark to operate a truck, allowed people to enter the industry that would not make the cut, if they had to operate a Manual Transmission"? The answer to that question is resounding YES.
kylefitzy Thanks this. -
I once heard years ago that Werner was certainly all for that because it widened the pool of potential victims drivers.
ducnut Thanks this. -
Oh, and BTW... For all the people saying there's no difference between driving an Autoshift and a Manual, even the government has enough sense to put a RESTRICTION on the license if you can't do both...
AModelCat Thanks this. -
ducnut Thanks this.
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An I-Shift, put into the appropriate gear at the top of the grade, will hold the speed/load all the way to the bottom. I’ve run 76K-79K into Bullhead City, several times, with only a handful of brake applications for the curves. By far, it’s the gnarliest grade I’ve driven. The D13/I-Shift combo is perfection.Siinman Thanks this. -
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Do you ever think that maybe good drivers are good drivers no matter the transmission and poor drivers are poor drivers no matter the transmission? My truck has the 12 speed Paccar and it doesn’t lunge in either direction. But I also own it so there’s a chance I may drive it and treat it differently than a fleet hack.
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