Although they look beautiful on postcards, mountains are dangerous places. They’re dangerous for hikers, small aircraft, and motorists. They’re the one place where being in a car doesn’t necessarily guaranty a safe passage. Their main problems are sudden storms, the effect of altitude on your engine’s performance, and the steep grades, which are hard on your engine while going uphill, and hard on your engine and brakes while going downhill. The consequences of losing control can be a devastating car accident. Keep these four tips in mind when driving through the.