Batteries, Plugs & Wires: All of these components give the spark to your your vehicle and they work extra hard when it’s cold. Winter stress can compromise their performance up to 60 percent. Test and replace old or weak batteries, plugs and wires, especially those more than three years old. It will certainly be cheaper than a tow and replacement down the road. Tire Pressure: Cold weather can reduce tire pressure, so make sure all tires, including the spare, are properly infl