Hello! I'm planning a road trip from Chicago to San Diego and I intend to leave in August. The route is yet to be determined, but I'm wondering what extra precautions I should be concerned about with driving in the August heat...how worried should i be about my car overheating? what precautions can i take before i leave? and if my car does overheat, what's the best way to handle it? Should I alter my route to avoid certain areas? Any advice would be great.