When we left Cheyenne,Wy after Frontier Days and were headed to Yellow Stone thru Cody, Wy. We were new with the diesel and the first big pass we came upon, we just pressed the throttle and expected it to start climbing. We bogged down to 500 rpm's and I had to take over with manual shifting. It was tuff getting going again. It did the same thing the next big grade. Something must be wrong. When we finally got to Jackson Hole, I talked to some experienced diesel drivers and they expained that since the RV came from Florida, flatlands, and it had no training in the mountains, meaning the allison transmission, it would just take a while for it to learn it's new environment. We maually shifted for maybe 15 grades, the first one being the Teton Pass out of Jackson Hole and when we finally tried the throttle down method the old baby dropped down 3 gears and actually acted like it knew what it was doing. It's been a driving dream ever since.
This little story was for the new diesel drivers who may experience the same conditions when driving in the mountains for the first time. Believe me the salesman won't even mention it.
This was some of our first out west mountain scenery. We had lived in the Blue Ridge Mountains but they didn't look anything like these.
Big Bad John & Runaround Sue