Will the windshield washer fluid freeze at minus 7 degrees Celsius inside the car?

[IsabelleLee]

If you use winter-specific windshield washer fluid, it will not freeze. However, if you use summer windshield washer fluid, it will freeze. Method for adding windshield washer fluid: Locate the washer fluid reservoir: The reservoir is usually on the right side of the engine compartment, and the cap has a symbol resembling an indicator light. Open the cap and add the fluid: There is a dipstick inside the reservoir. When adding fluid, pay attention to the dipstick's markings to avoid overfilling, which can lead to unnecessary waste due to overflow. Precautions for adding windshield washer fluid in winter: During winter, choose an antifreeze-type windshield washer fluid. Also, select a fluid model with a freezing point at least 10 degrees Celsius below the local minimum temperature. This significantly reduces the likelihood of the fluid freezing.