Company removing manual gear selection override on automatic trucks?

Have to use the engine brake or it will up shift and go into eco-roll mode.

 

Nah, they stick to I40 ping ponging between California and Mississippi.

 

I think people are forgetting the basics. Do people know how to go downhill without an engine brake? You don't have anything but the brakes to hold you back if the engine brake fails. If the engine brakes failed you can still go downhill you just have to go slower. Yes it a pain in the butt.

It's the same with autoshift if you can't put it manual mode you still have control you just need to slow down so it does not downshift, unless you want it to. You can't just roll downhill you have to know the autoshift will drop a great at 1750 RPMs. So if you don't want that and you don't have manual mode guess what you do. You push on the brake pedal an slow the truck down

People seem to forget if the road is slippery you don't want to use engine brake with autoshift or manual transmission you use your brakes and go downhill slower. All the engine brakes does is let you go downhill faster.

 

Not to mention just by blocking manual mode does not mean one cannot manually shift. It just means one cannot set it to require shifting 100% of the time. You can still downshift a gear in automatic mode. (untill the computer thinks it needs to upshift anyway)

 

I-40 goes through Mississippi?

 

20 or less is always good on 8% I don't know if you are familiar with Mount Eagle in GA/TN area they had a chart that spec'ed 15 or less for 80,000 to start off. The gradient was not the only issue, there was a real bad lean to the pavement because of the mountain itself making everything lean to one side or the other on the way down. That influenced the weight problem greatly on ice.

Some people do not care for control. I remember one red maita convertable from mazda zip by into Mt Eagle one day in the rain, he hydroplaned at speed and destroyed the car against the rock wall inside the median on the way up before i got there.

 

Its easy, one wide and two deep

 

Same bs at fedex freight. Post 2015 trucks that have cummins ####advantage with small step overdrive in it and 2.67 rear end (single axles) and 2.64 (for tandems). it has manual mode disabled. On flatspot, it will only work max to 53 mph and it will only lock currently gear you want to be at when going uphill once the sensor feels you are going up. Power curve on em is 1000 to 1300 rpm as of havinv 1750 torque. After 1300 rpm, sudden drop in torque. 1180 rpm at 65 while 10th gear with .8 to 1 ratio. 1475 rpm at 65 when i drop to 9th (direct gear), no power response until the rpm drops lower than 1350. By the time that happens, i will be just going up at 61 mph.

 

I was waiting for that.

Of course it doesn't but for reasons of brevity I omitted the 30 mile stretch of non-I40 road they travel on to their terminal in Mississippi.

Better?.