How to Handle Summer Engine Overheating on the I-55 Commute

Picture this: It is a scorching July afternoon in Illinois, and you are trapped in bumper-to-bumper traffic on Interstate 55 near Joliet. The ambient temperature is pushing 95 degrees, the black asphalt is radiating heat like a blast furnace, and your cabin air conditioning is working overtime. Suddenly, you notice a distinct drop in your vehicle's performance. You glance down at your dashboard, and your heart sinks: the temperature gauge is climbing rapidly into the solid red zone---