Towing Over a Colorado Pass: What Altitude and Grade Actually Do to Your Truck
A naturally aspirated gas engine loses roughly three percent of its power for every thousand feet you climb, which means the truck that pulled your trailer fine in Grand Junction is a different truck near the top of a pass. Here is what altitude and grade actually do, why an exhaust brake matters more than a tow rating, and which manufacturer is honest enough to publish an altitude derate.
Read More