lbrjet wrote:
I have traveled thousands of miles at 6-10K elevations and have never noticed a degradation. I think it is over hyped. I was really worried about it on my first trip across Colorado several years ago. Didn't notice a thing and haven't worried about it since.
I remember driving up to Keystone to ski in my cousins Isuzu Trooper, and remember him dropping speed when he shifted from 3rd to 4th gear. So we just had to drive with the engine near redline in 3rd gear to get up the road. So, I've experienced it first hand.