Can Windshield Washer Fluid Be Added to Antifreeze?

1 Answers
McEmma
07/29/25 6:06pm
Adding windshield washer fluid to antifreeze, if in small amounts, does not have a significant impact. However, adding a large quantity can cause malfunctions. This is because windshield washer fluid lowers the boiling point of the antifreeze, preventing the engine from cooling effectively. Precautions for Mixing Antifreeze: It is essential to use the same brand of antifreeze. Different brands may have varying production formulas, and mixing them can lead to chemical reactions between additives, rendering them ineffective. The primary indicators of antifreeze are its freezing and boiling points. Available antifreeze products on the market have freezing points such as -15°C, -25°C, -30°C, and -40°C. Generally, it is advisable to choose an antifreeze with a freezing point at least 10°C lower than the lowest temperature in your region. Functions of Antifreeze: Antifreeze is a coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It offers excellent performance in preventing freezing in winter, boiling in summer, and protecting against scale and corrosion year-round. The main components of antifreeze are: 50% pure water, 40% methanol, and 10% other substances.
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