How long does the windshield washer fluid in a new car usually last?

[LeTyler]

The windshield washer fluid in a new car typically lasts about one month. The duration mainly depends on the frequency of use—simply refill when it runs out, as there is no fixed refill cycle. Recommendations for refilling windshield washer fluid in a new car: Do not use tap water. The minerals in tap water can clog the windshield washer fluid lines. If the air temperature drops below freezing, use a windshield washer fluid containing sufficient antifreeze components. Avoid running the windshield washer continuously for several seconds, and do not operate the washer when the fluid reservoir is empty, as this can cause the washer motor to overheat, leading to costly repairs. Automotive windshield washer fluids are generally categorized into 0°C fluids for summer use and -20°C or -35°C fluids for winter use. These fluids provide protective properties for the windshield and wiper blades, ensuring vehicle care during normal use. Some branded washer fluids are formulated with multiple surfactants and additives, uniquely capable of repairing minor scratches on the windshield surface by forming a protective film, offering comprehensive protection for the windshield.