Windshield washer fluid, usually blue in color, is an easy fluid to check.
Windshield Washer Fluid Types. Windshield washer fluid is specially formulated to clean road grime from the windshield. Various types of windshield washer fluid have different freezing points. Read the label and choose the correct type for the freeze protection needed. Do not use only water. If the temperature drops below 32ºF (0ºC) and the water freezes, you will risk cracking the windshield washer fluid reservoir and pump. It could also freeze on your windshield.