To ignore the condition of your vehicle’s radiator is to risk overheating problems that can lead to catastrophic engine failure. Radiator Relief from Design Engineering Inc. is a corrosion-inhibitor and anti-foaming agent that you pour into your car’s cooling system. The manufacturer claims the product is 100 percent biodegradable, non-corrosive and non-toxic and is compatible with water and all types of coolants and radiator alloys. Its use will also reduce the amount of scale build-up inside the core and can cut engine temperatures by as much as 30 F. A 16-ounce bottle of Radiator Relief sells for $10 and can be ordered online at (as well as the company’s other radiator products), or purchased from one of the retail stores listed on there.

Here’s a rad(ical) idea