How to Make Car Windshield Washer Fluid?

[DiArabella]

Here are the methods for making homemade windshield washer fluid: 1. Spring Windshield Washer Fluid: Prepare a 2.5-liter plastic bottle, 2 liters of purified water, 250ML of 95% medical alcohol, and 1-2 caps of detergent. Mix them thoroughly and it's ready for use. The detergent is mainly for removing sand and dust, while the alcohol accelerates water evaporation, ensuring quick cleaning of the windshield. 2. Summer/Autumn Windshield Washer Fluid: Use a 2.5-liter plastic bottle, 2 liters of purified water, 500ML of 95% medical alcohol, and 1 cap of detergent. The alcohol is very effective in removing insect residue. If you're in the city, you can top up the reservoir with purified water, but it's not recommended to dilute the mixture on highways as it may reduce effectiveness. 3. Winter Windshield Washer Fluid: A mixture of 20% 95-proof alcohol and 80% water has a freezing point around -10°C, suitable for early winter. A mixture of 20-30% alcohol and 60% water has a freezing point of -15°C. A mixture of 40-50% alcohol and 50-60% water can reach a freezing point of -25°C without freezing, meeting most winter needs.