Homemade Windshield Washer Fluid and Rain Repellent

Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it’s also earth friendly. Avoiding commercial windshield washer fluid is good for your budget and the environment.

Compare the cost of commercial washer fluid at anywhere from a few dollars or more to less than a dollar per gallon for this homemade version. Methanol, a deadly poison used in most commercial washer fluid, is another reason to make your own.

Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.

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Supplies Needed For This Post

Isopropyl Alcohol Vinegar ECOS Dishmate Liquid Dish Soap - Lavender
Optional Supplies
Blue Food Color Lemon Essential Oil

This Post Contains

Commercial Versus Homemade Windshield Washer Fluid

Methanol, commonly used in commercial wiper fluid to prevent freezing, is extremely toxic. According to the US National Library of Medicine article Windshield Washer Fluid, “Methanol, the main ingredient in windshield washing fluid, is extremely poisonous. As little as 2 tablespoons can be deadly to a child. About 2 to 8 ounces can be deadly for an adult. Blindness is common and often permanent despite medical care.”

Commercial Washer FluidA Safety Data Sheet for methanol states that it “May be harmful if inhaled, absorbed through the skin or swallowed. Mild central nervous system depressent. May cause headache, nausea, dizziness… blindness may develop. Coma and death may result.”

An added bonus to this homemade windshield washer fluid, as with many homemade cleaning solutions, is the amazingly low cost relative to the commercial versions.

The least expensive commercial brands do little more than water would to clean your windshield. More effective brands cost several dollars, with popular brands costing double digits. This homemade windshield washer fluid is less than a dollar a gallon to make using common household ingredients.

Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.Like some of the more expensive commercial brands, this homemade windshield washer fluid has the added feature of rain repellent properties. Living in the northwest I know a little something about rain. Here we don’t just have “rain”, we have grades of rain… mist, downpour, sprinkle, drizzle, torrent, pouring… You get the idea.

If you’ve ever been in a “torrential downpour” and realized your wipers just can’t keep up, you’ll truly appreciate how this windshield washer fluid causes water to bead up and literally fly off your windshield. It’s a safety feature I won’t be without on our high-speed freeways that are frequently filled with semi-trucks driving dangerously fast, even in the worst weather.

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Keep mirrors and windows crystal clear, quickly and easily, with this amazing homemade glass cleaner. No streaks. No hazy film. No problem.

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Keep your windshield and windows crystal clear and streak free on the inside too, with this great glass cleaner recipe!
Crystal Clear No Streak Glass Cleaner
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Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.

About The Ingredients

[Isopropyl alcohol], also known as rubbing alcohol, provides anti-freeze and rain repellant properties to your homemade washer fluid, as well as preventing streaks. Most stores carry 70% and 90% isopropyl alcohol. For areas with more severe winters, use 90% to assure your washer fluid won’t freeze in the reservoir.

[Distilled white vinegar] has a slightly lower freezing point than water but is primarily included in this recipe for its ability to clean. Due to its acidic properties, it’s a good cleaning agent. Considered a solvent, it can dissolve mineral deposits, and cut through oils and grease.

[Liquid Dish Soap] provides extra cleaning power for stuck on bugs and road grime. I use [ECOS Dishmate Liquid Dish Soap] and really like it’s cleaning power and mild fragrance.

[Essential oil], an optional ingredient, is included to improve the scent of the wiper fluid. I notice the strong smell of commercial washer fluid brands. It comes through the vents when I clean the windshield. This homemade version has a strong smell as well due to the vinegar and isopropyl alcohol. The use of essential oil makes it a bit more pleasant and depending on the oil used, for example a [citrus essential oil], can add to the cleaning properties of the solution.

Blue food coloring, also an optional ingredient, is primarily used to help designate this as cleaning fluid and avoid any confusion about the contents. As with any cleaning solution, homemade or commercial, please store this in a location young children cannot reach and label clearly. I’ve provided a Printable Label below which includes the list of ingredients and instructions to make future refills easy.

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How To Make Homemade Windshield Washer Fluid

Materials

  • gallon container (an empty vinegar bottle works great)
  • funnel

Ingredients

  • 2 cups isopropyl alcohol
  • 1 cup white vinegar
  • 3 quarts water
  • 2 Tbsp liquid dish soap
  • 5 drops blue food coloring (optional)
  • 10-20 drops essential oil (optional)
Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.
Step 1 Measure alcohol and vinegar.
Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.
Step 2 Pour alcohol, vinegar and optional ingredients into gallon container.
Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.
Step 3 Fill remainder with water, leaving room for the dish soap.
Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.
Step 4 Add liquid dish soap. Shake gently to mix.
Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.
That’s it! Fill your vehicle’s washer fluid reservoir then label and store remaining solution out of reach of children.

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Keep mirrors and windows crystal clear, quickly and easily, with this amazing homemade glass cleaner. No streaks. No hazy film. No problem.

Open Post

Keep your windshield and windows crystal clear and streak free on the inside too, with this great glass cleaner recipe!
Crystal Clear No Streak Glass Cleaner
advertisement

Homemade Windshield Washer Fluid Printable Label

Hint: You don’t need special label paper, just run a glue stick along the edge and smooth onto your container.

↓ Click printer to print.

Easy, inexpensive, and effective, this homemade windshield washer fluid is a rain repellent too! Made with common household ingredients it's earth friendly.

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Supplies Used In This Post

Isopropyl Alcohol Vinegar ECOS Dishmate Liquid Dish Soap - Lavender
Optional Supplies
Blue Food Color Lemon Essential Oil

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Have you ever made your own windshield washer fluid? How well did it work? If you have a recipe or tip, please share in the comments! ↓

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