Freeze!

Coolant, also known as antifreeze, is tremendously important to your car, as it keeps the engine from freezing in cold temperatures. Before you head into winter, make sure your car isn't low on coolant and that there aren't any leaks in your vehicle's engine that could cause coolant to drain out. Many mechanics recommend drivers use a 50/50-mix of coolant and water in their radiators, which usually results in a lower engine freezing point than just coolant.