Originally Posted by frozen
I disagree with some of you; uphill, I prefer to manually shift down to a gear low enough to prevent the transmission from up and downshifting much on its own. It's probably easier on the entire drive train even if the engine is running 400-500 rpm higher (within reason). Downhill, same thing. Start the downgrade in a lower gear and at a reasonably slow speed that the exhaust brake and transmission can maintain. If one is using the foot brake very much, he's allowing too much speed to build up. It's much easier to start downhill at slow speed than to have to stand on the brakes as a sharp curve is approached. You'll seldom see good truckers start a long decline with much speed (like coming down from 11,000' at Eisenhower Tunnel west of Denver on I-70). As others have said, tow/haul and your exhaust brake are your best friends.
I agree with you Frozen. The one concern that has not been talked about is to watch the engine temperature. If you push it to hard on the way up the engine temp may climb and overheat. You need to pick the right gear for your tv and the load you are draging up the inclien so as not to overload and or over heat the tv.
On the way down pick a low gear that is equel to or less than the speed limit and keep the engine rpm below the red line. Next watch how you apily you brakes down hill. They need to be applied in short time incroments with time in between to cool them down and still keep the engine rpms below the red line!!! and a safe speed. If you keep the brakes applied for long period of time they will over heat and boil the brake fluid resulting in no or very little brakes. Your brakes should return after they cool down but may have been damaged due to the over heating.
Hope this helps Tim