Death in Masu huk'ucha

From Introduction:

Through the DesertDrake has a vehicle and a vague map back to the shrine he once found. With Drake at the wheel, it takes a week of hard driving to reach the area of the shrine. Unfortunately, there are local wildlife, Nazis and Rednecks with Uzis that don’t want the group to make it.
Heat Kills
Reaching temperatures of 140 degrees in the afternoon, the Chaco is an unforgiving place to men, animals and vehicles. Unprotected in the desert and without water, characters must make a Vigor check every four hours with the appropriate penalties for temperature, water, and other factors. Calculate the temperature at any given time (1d6x10)+75 degrees. At night, the temperature falls to between 40 and 60 degrees.