I'd be interested in comments relative to pressure changes with altitude. We recently returned to the Seattle area from a 2 week excursion to the Colorado Plateau area. Tire pressure was set at 65 psi (cold) on all 6 of my tires per 'Coach House' recommendations. (Weight is pretty evenly distributed in this rig.) Of course this was at near Sea Level conditions. In checking cold pressure at much higher altitudes (many places on the Colorado Plateau are near 9000'). I found it had risen over 10 psi. I resisted the temptation to adjust them as they were still below the max limit set by Michelin. In checking after we got home I noted that they were back to the 65 psi set at departure. Was I right to leave them alone on the trip?
