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Will Adding Alcohol to Windshield Washer Fluid Damage the Car?

1 Answers

GriffinMarie

07/30/25 4:51am

Adding alcohol to windshield washer fluid can damage the car and may even cause fire damage to the vehicle in severe cases. Hazards of adding alcohol to windshield washer fluid: Alcohol is a flammable substance with strong volatility. The vapor it releases can form an "explosive" "mixed combustible gas" with the atmosphere, which may ignite or explode when exposed to high heat or open flames, leading to serious consequences. Even if added to the washer fluid reservoir, which is in a sealed state, alcohol can form "vapor" in the pipes due to heat, posing an explosion risk under the high temperature of the engine block. Functions of automotive windshield washer fluid: It has cleaning, antifreeze, antifog, antistatic, lubricating, and anticorrosion properties. Cleaning performance: surfactants typically have wetting, penetrating, and solubilizing functions, thereby aiding in cleaning and removing dirt. Antifreeze performance: it significantly lowers the freezing point of the liquid, preventing freezing and quickly dissolving frost. Antifog performance: it forms a monomolecular protective layer on the glass surface, preventing the formation of fog droplets and ensuring clear visibility through the windshield. Antistatic performance: after cleaning with the washer fluid, substances adsorbed on the glass surface eliminate static charges on the glass. Lubricating performance: its higher viscosity provides lubrication, reducing friction between the wipers and the glass to prevent scratches. Anticorrosion performance: the washer fluid contains various corrosion inhibitors that are completely safe for all metals, automotive paint, and rubber.

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