Q: Does windshield washer fluid freeze?

asked by on November 20, 2015

Does windshield washer fluid freeze?

There are several different types of windshield washer fluid on the market. During winter weather conditions, it is important to choose a windshield washer fluid that contains antifreeze. Methanol, ethylene glycol, or ethanol are types of alcohol that are added to windshield washer fluid to reduce its freezing point beyond 32 degrees F and prevent it from freezing. The freezing point of windshield washer fluid will vary depending on the formula of the fluid so it is important to note the freezing point that is listed on the bottle and choose one that is best for the area that you live in. There are however certain types of windshield washer fluid that are made for other purposes, like the removal of bugs from the windshield. These windshield washer fluids will usually have the same freezing point as water and are not the best choice during winter weather conditions. In areas with particularly cold temperatures, what commonly happens is that the windshield washer nozzles and/or fluid lines freeze. Although most windshield washer fluid is made to prevent freezing, it is not impossible for it to freeze if there is too much water in the formula. If this happens you will most likely have to wait until it has thawed out.

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