I am a bit slow, but finally figured out how to drive the mountains

Old cheap me, thinks keep the RPM's down and save wear and tear on the car. Wrong. When we hit the mountains, that is the worst thing I could do. Get the Revs up and get over the mountains. We just came up I 17 from Phoenix to Flagstaff. I thought on no, more mountains. I decided to go after them more aggressively and with a red line on the Isuzu, at 6200, I down shifted into first gear with maxing the rpms at 4000. Made those mountains easily. Key to mountains driving is keep those revs up. Pulled the TM up without even a hiccup. Every one said keep the rpm's p and finally listened. I have always been a bit slow or stubborn. LOL. Hope this helps others. JOhn