It is not recommended to directly replace windshield washer fluid with water, as ordinary tap water cannot provide the multiple functions of professional windshield washer fluid. Windshield washer fluid contains ingredients such as surfactants, alcohol, and ethylene glycol, which can efficiently remove stubborn stains like dust and insect residues from the windshield. It also provides anti-freeze, anti-fog, anti-static properties, and lubrication for the windshield wipers. Particularly during rainy seasons or nighttime driving, water residue may impair visibility and compromise safety. In case of urgent temporary need, a small amount of distilled water may be mixed briefly with windshield washer fluid as an emergency measure. However, dedicated windshield washer fluid should be replenished promptly to ensure optimal performance. When selecting windshield washer fluid, ensure its freeze protection rating suits the local climate. The correct refilling procedure involves first draining the old fluid, then filling with new windshield washer fluid up to the marked level, avoiding mixing different brands to prevent potential chemical incompatibility.
