At What Temperature Does Windshield Washer Fluid Freeze?

The role of cleaning your windshield falls on your windshield washer and wiper system. When your windshield is dirty, you spray windshield washer fluid onto the glass and turn on the wipers to clear the dirty fluid from your view.

The fluid that sprays from your washer nozzles comes from a reservoir mounted under the hood of your vehicle. Some vehicles equipped with a rear wiper and washer utilize the same reservoir while others have a separate one in the rear. When the washer fluid is sprayed, a pump inside the reservoir lifts the fluid to the washer nozzles and it is dispersed onto the glass.

Depending on the type of fluid that’s been put in your reservoir, it may be possible for it to freeze if the temperature drops low enough.

  • Bug wash, which is a solution that includes cleaners to assist in the removal of bug remains and other hard-to-remove windshield contaminants, freezes when exposed to any consistent temperature below freezing (32°F). Keep in mind that a morning with frost isn’t enough to freeze your washer fluid.

  • Washer fluid antifreeze is available in several formulas. Some come with freezing points of -20°F, -27°F, -40°F, or even down to -50°F. This washer fluid contains an alcohol that lowers the freezing point of the washer fluid significantly. It can be either methanol, ethanol, or ethylene glycol mixed with water.

If your washer fluid freezes, thaw it out as soon as possible. In some cases, freezing can cause the reservoir to crack or the pump to be damaged as the water expands. If this happens, your washer fluid will all leak out and your windshield washers won’t spray. Your washer fluid reservoir can’t be repaired and would have to be replaced.


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Angel

5 years of experience
118 reviews
Angel
5 years of experience
Toyota Camry L4-2.4L - Windshield Washer Reservoir Replacement - Hyattsville, Maryland
I was very skeptical about using this service without a personal recommendation from someone I knew. However, this service may very well be one of the best things I’ve ever discovered. Angel was amazing. He was punctual, professional, patient, and knowledgeable. He made me feel comfortable with the process. His work was impeccable and I was highly satisfied.

Claud

8 years of experience
475 reviews
Claud
8 years of experience
Honda Pilot V6-3.5L - Windshield Washer Reservoir - Highland Park, Michigan
Claud was fantastic. I couldn’t have asked for a better experience. He arrived right on time and got to work right away. He was friendly and polite with a good sense of humor. he worked quickly and kept in touch with me throughout the process. My five services were completed in 90 minutes! He made recommendations for next time and I will definitely be utilizing him again. Thank you so much Claud!!

Christopher

27 years of experience
347 reviews
Christopher
27 years of experience
Volkswagen Jetta L5-2.5L - Windshield Washer Reservoir - Shrewsbury, Massachusetts
Excellent work by Christopher. He has been very helpful and was actually able to service my car before the scheduled date. Awesome Christopher !! anyone who is appointing him for a service can have 100% confidence in him.

Jason

32 years of experience
507 reviews
Jason
32 years of experience
BMW 328i L6-3.0L - Windshield Washer Reservoir - Mountain View, California
Sharp on time and very pleasant to work with. I had a leak from the Windshield water reservoir but it turned out that the leak is coming from the hose after very thorough investigation. It is tricky to uninstall & install the reservoir tank from the very tight BMW engine room. Jason was very patient and managed to complete the task successfully. Thanks.

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