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4 Safe Homemade Alternatives for Windshield Washer Fluid

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windshield wiper alternative safe homemade fluids

As a child, you may have noticed a resemblance between brightly-colored windshield washer fluid and your favorite sugary drinks, which compelled you to speculate, “I wonder if that stuff Dad puts in his car is as tasty as my favorite blue juice.”

If you did have that thought, good thing you never gave it a taste! Windshield washer fluid is made of methanol, also called methyl alcohol, and just a couple spoonfuls of it can be fatal.

Now, think about that toxicity as every car around the globe sprays it off its windshield to drain into the ground and sewers along the road. Can you imagine how many bottles of fluid that amounts to? Sure, the liquid is necessary to drive in snowy, dirty, and freezing conditions, but is there an alternative we could be using?

Good news: there is! We’re proud to present a list of environmentally-friendly alternatives to methanol that you can mix yourself.

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  • White Vinegar: This all-natural substance won’t freeze in cold temperatures and is known for being an effective glass cleaner. Just dilute one part distilled white vinegar to three parts water to ensure that the acidity won’t affect your car’s paint or mechanical components.
  • Rubbing Alcohol: Like vinegar, isopropyl alcohol also cleans dirt off of windows and is freeze-resistant. To dilute it, mix three cups with one gallon of water. Be sure not to ever put this flammable liquid in its pure form into your fluid tank.
  • High Proof Vodka: True, it’s a shame to waste good vodka to wash your windshield, but it is a comparable substitute for isopropyl if you’re low on options. Follow the same instructions above.
  • Household Glass Cleaner: While this substance is not completely natural, it’s much less harmful than methanol. Mix one part glass cleaner to three parts water and toss in a spoonful of dishwasher fluid for good measure. Just note that this solution will only work for drivers in warm weather.
  • Water: If you’re in a bind and need something to keep the dust from the road off your windshield, a couple cups of pure water in the tank should be enough to keep the grime away. Just be absolutely sure you’re in warm territory before making this decision, as frozen water can break your fluid tank. Pour in a bit of isopropyl if you’re worried about that.

You can also add liquid castile soap to most of these mixtures for an extra boost of cleanliness. Or, you can combine them to form your own solution (like one gallon of water, one cup of glass cleaner, and a half cup of rubbing alcohol). Small steps like this may not seem like much, but will lead to fewer impacts on the environment.

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