35th Anniversary Thunderbird Registry

Antifreeze Replacement

It is highly recommended for longer engine life that you change your antifreeze at least every two years. The antifreeze has additives that help combat corrosion inside the engine and over time these ingredients will break down. As antifreeze breaks down, it can even become corrosive. This is especially important to the aluminum parts of the engine such as the heads and the radiator. Also as the coolant flows through the engine, a slight electrical charge, known as electrolysis, occurs that will eat away at the metal inside the engine and radiator. Frequent antifreeze replacement is recommended to minimize the risk of corrosion in engines with aluminum parts and aluminum radiators. A good 50/50 solution of antifreeze and water is usually sufficient for most conditions.