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What Causes a Sedan to Leak Antifreeze?

1 Answers

VanRachel

07/29/25 3:57pm

The reasons for a sedan leaking antifreeze are: 1. Loose sealing at the connection between the antifreeze reservoir and the radiator; 2. Aging and cracking of rubber hoses; 3. If the radiator frequently requires water refills and the car is old, the radiator may be rusted through; 4. Use of improper coolant or coolant with too much water content. Automotive antifreeze, also known as antifreeze or non-freezing liquid, is officially called automotive antifreeze coolant, meaning it is a coolant with antifreeze properties. Antifreeze prevents the coolant from freezing and expanding in cold weather, which could crack the radiator or damage the engine block. Antifreeze is not just for winter use; it should be used year-round. In regular car maintenance, the engine antifreeze should be replaced every year, with more frequent replacements for special vehicles.

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