Do It Yourself Windshield Washer Fluid: A Comprehensive Guide
Keeping your windshield clean is crucial for safe driving, and while store-bought washer fluid works well, making your own offers cost savings and customization options. This guide will walk you through creating effective DIY windshield washer fluid, addressing common questions and concerns.
Why Make Your Own Windshield Washer Fluid?
The primary reasons for making your own washer fluid are cost and customization. Store-bought fluids can be expensive, especially during winter when de-icing agents are needed. Making your own allows you to control the ingredients, ensuring you get the cleaning power and protection you need without unnecessary additives. For example, you can easily adjust the mixture for milder weather or for extremely cold temperatures. You also can avoid harsh chemicals or fragrances that might irritate sensitive skin or damage your car's system.
What Ingredients Do I Need?
The basic recipe for DIY windshield washer fluid is simple:
- Water: This forms the bulk of the solution. Use distilled water to prevent mineral deposits that can clog your washer system. Tap water is acceptable in a pinch, but distilled is preferred.
- Isopropyl Alcohol (Isopropanol): This is the key ingredient for de-icing in colder climates. The percentage needed depends on the expected temperature. More alcohol is required for lower temperatures. You can find Isopropyl Alcohol at most pharmacies and supermarkets. Always check the percentage on the bottle; 70% or 90% Isopropanol is suitable.
- Dish Soap: A small amount of dish soap acts as a surfactant, helping the water and alcohol mix and improving cleaning power. Avoid using harsh detergents. A gentle dish soap is best.
How Much of Each Ingredient Do I Need?
The ratios will vary depending on the climate:
- Mild Weather (Above Freezing): A simple solution of 1 gallon of distilled water and 1-2 tablespoons of dish soap is sufficient.
- Cold Weather (Freezing Temperatures): For freezing temperatures, you'll need to add isopropyl alcohol. A common ratio is:
- 1 gallon distilled water
- 1 cup (8 ounces) isopropyl alcohol (for temperatures down to 20°F/-7°C)
- 2 cups (16 ounces) isopropyl alcohol (for temperatures down to 0°F/-18°C)
- 1-2 tablespoons dish soap
Important Note: These are guidelines. The exact amount of alcohol needed depends on the specific isopropyl alcohol concentration and the expected temperature. You might need to experiment to find the ideal ratio for your location and climate.
Can I Add Other Ingredients?
While the basic recipe is effective, some people add additional ingredients for extra cleaning power or to enhance the scent. However, exercise caution. Some additives can damage your car's paint or washer system. Stick to proven additives if you choose to experiment. For example, some people add a small amount of white vinegar to help cut through grime and grease.
How Do I Make It?
The process is straightforward:
- Gather your ingredients. Ensure you have distilled water, isopropyl alcohol (if needed), and dish soap.
- Mix the ingredients. Add the water to a suitable container (such as a clean five-gallon bucket or several smaller containers). Then, add the isopropyl alcohol (if using) and dish soap.
- Stir well. Make sure the ingredients are thoroughly mixed.
- Transfer to your windshield washer fluid reservoir. Carefully pour the mixture into your car's washer fluid reservoir.
Will Homemade Windshield Washer Fluid Damage My Car?
Using a properly mixed solution of distilled water, isopropyl alcohol (if necessary), and a mild dish soap should not damage your car. However, avoid using harsh chemicals or excessive amounts of soap, which could potentially damage your car's paint or washer system. Always test a small amount in an inconspicuous area first to ensure it doesn't cause any problems.
How Long Does Homemade Windshield Washer Fluid Last?
Homemade washer fluid generally lasts for several months, especially if stored in a sealed container. However, it's a good idea to replace it periodically, especially if you notice any signs of clouding or discoloration.
What Are the Benefits of Making My Own?
The benefits include cost savings, the ability to customize the solution for different weather conditions, and the potential to avoid harsh chemicals found in some commercial products.
This guide provides a thorough understanding of how to make your own windshield washer fluid effectively and safely. Remember to always prioritize safety and use caution when handling chemicals. By following these steps, you can enjoy clean windshields and significant cost savings.
