Does Antifreeze Corrode Metal?

[VivianFitz]

Automotive antifreeze is corrosive. During use, antifreeze tends to generate acidic substances, which can corrode metals. Functions of Antifreeze: Antifreeze is a type of coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It offers excellent properties such as preventing freezing in winter, boiling in summer, and providing year-round protection against scale and corrosion. Antifreeze Replacement Cycle: For vehicles that operate for extended periods, such as taxis, high-quality antifreeze should generally be replaced once a year. For vehicles with shorter operating times, replacement can be done every two years or every 30,000 kilometers. To prevent excessive foam formation, which reduces the heat exchange efficiency between the antifreeze and engine components, ensure the product is within its validity period when adding it. Long-life antifreeze can remain effective for up to three years. If suspended particles, sediments, or signs of deterioration or discoloration are observed in the antifreeze, it should be replaced promptly, and the system should be cleaned.