Incredible How To Make Your Own Windshield Washer Fluid 2023. Make a warm weather washer fluid mix. You can also make windshield washer fluid by adding a 1/2 cup of ammonia and 1 tablespoon of dish soap to a gallon of water and then shaking the mixture thoroughly.

Ditch the commercial stuff, save money, and make your own! Stirring isn’t the best way to mix a solution. Yes, you can make your own windscreen washer fluid at home using as little as just three simple home ingredients.