What are the 3 formulas for automotive windshield washer fluid?
2 Answers
Automotive windshield washer fluid has the following 3 formulas: Formula 1: Propylene glycol methyl ether 5.0, Ethylene glycol 14.0, Isopropanol 80.0, Nonylphenol (EO) 9-10, Ether 1.0. Usage concentration: Dilute with water at a ratio of 1:1. For winter use. Formula 2: Propylene glycol methyl ether 12.0, Isopropanol 76.0, Propylene glycol 12.0. Usage concentration: Dilute with water at a ratio of 1:1. For winter use. If used in summer, can be further diluted 5 times. Formula 3: Propylene glycol methyl ether 6.0, Nonylphenol (EO) 9-10, Propylene glycol methyl ether 16.0, Isopropanol 10.0. Usage concentration: Dilute with water at a ratio of 1:1. For summer use.
I've been driving for decades and always mix my own windshield washer fluid—it's cost-effective and convenient. There are three most common formulas: The first is a basic cleaning version, mixing seven parts distilled water with three parts isopropyl alcohol, adding a drop or two of dish soap to effectively remove grease. The second is the antifreeze type, crucial for winter driving in northern regions—a blend of five parts water and five parts methanol-based antifreeze lowers the freezing point to -10°C, ensuring safe winter use. The third is a mild, eco-friendly version, combining 80% water with 20% white vinegar as a natural, non-irritating cleaner, ideal for sensitive weather conditions. Always mix in a well-ventilated area, away from flames, to avoid risks from high alcohol concentration. I replace the fluid regularly to prevent nozzle clogs that could impair visibility—safety comes first on the road.
