Save Money: Homemade Windshield Washer Fluid

Last night, while going to my girlfriend’s house we stopped by her car to pour some windshield fluid. I’ve noticed that her car didn’t have any washer fluid, so we poured some remains from my car’s stash, third of a gallon.

Homemade Windshield Washer Fluid Save Money: Homemade Windshield  Washer Fluid

While pouring the fluid I remembered reading somewhere that you can make your own washer fluid. Actually, this is not a rocket science if you live in California, where there is no snow and freezing temperatures. But, if you do live in somewhat colder places, there’s a thing you have to watch for – ICING.

Homemade Windshield Washer Fluid 3 Save Money: Homemade Windshield  Washer Fluid

Water is one of the few known substances whose solid form is less dense than the liquid. In other words, when going from liquid to solid state, “normal” molecules contract, but water molecules expand and doing so can rupture hose or your radiator. This is why you have to use antifreeze to keep the water mixture in the cooling system above 0 Celsius (32 Fahrenheit).

Homemade Windshield Washer Fluid 4 Save Money: Homemade Windshield  Washer Fluid

Searching through the “net” I found some recepies:

For warmer climates you can use:

- 25% windex and 75% water and a teaspoon of liquid dishwasher fluid, or
- 9 cups of water, 1 cup of isopropyl alcohol, 1 tablespoon of dishwashing liquid, or
- one gallon of distilled water and one cup of glass cleaner

For colder climates you can use:

- one gallon of distilled water, one cup of glass cleaner and one-half of a cup of isopropyl alcohol (anti-freezing agent), or
- mixture of one part vinegar and three parts of water

Most popular windshield washer fluids on the market today are made up of 90% water and 10% methanol. To get best results you should use distilled water as it is free of the impurities found in tap water. Methanol can be found at an industrial supply store or you can use a larger quantity of ethanol (drinking alcohol). To test the right mixture leave it in the cooler over night, if it doesn’t freeze, you’ve got yourself a homemade, eco friendly windshield fluid.

Filed Under: Cars & Transport

Comments (4)

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  1. [...] some vinegar in a spray bottle. Spray around the areas that these pesky critters show up. Vinegar leaves behind a natural ant [...]

  2. arsalan says:

    dear sir

    i enjoyed from your comments on windshield cleaner and made my own. thank alot
    arsalan from tabriz iran

  3. ForUsToBe says:

    glad to help :)

  4. Ian says:

    I buy bottles of gas line antifreeze (methanol) for like $4 for 6 little 150mL bottles for winter antifreeze. Works great

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