Kayteg1 wrote:
Don't think engine cooling is an issue with modern trucks.
The hottest trips are our longest where I am typically loaded 24-26K lbs GCW. Mountain passes may only be 80 degrees once you escape the foothills, but I seem to find those rolling hills with repeated 1000' climbs that are low enough to approach triple digit temperatures. I think the highest coolant temperatures I have seen were about 220 degrees when we got stuck in a construction zone on a mountain pass - It didn't help that some of my fellow travelers started to overheat where there were no shoulders or pull-outs.