Antifreeze protects your engine from both freezing in cold weather and overheating on hot days. It's important to keep equal parts antifreeze and water in your radiator. A ratio of 50:50 is recommended which will keep fluids from freezing when temperatures get as low as negative 34 degrees Fahrenheit. Fortunately, you don't need to stand over your engine with a measuring cup: pre-mixed bottles of antifreeze and water are sold at gas stations. It's important to pay attention to the amount of antifreeze in your vehicle. If you don't the coolant can freeze and the engine will get extremely hot. Chances are you'll blow a gasket or two, and the cost of replacing them can be pricey.
