Can You Add Windshield Washer Fluid When the Vehicle is Hot?

[Tyra]

You can add windshield washer fluid when the vehicle is hot because the windshield washer fluid is not related to the engine and is not added into the engine. Composition and characteristics of windshield washer fluid: Windshield washer fluid is a consumable in vehicle use. High-quality windshield washer fluid mainly consists of water, alcohol, ethylene glycol, corrosion inhibitors, and various surfactants. Windshield washer fluid typically has functions such as wetting, penetrating, and solubilizing, thereby serving the purpose of cleaning and removing dirt. The presence of alcohol and ethylene glycol significantly lowers the freezing point of the liquid, providing an anti-freeze effect and quickly dissolving frost. Classification of windshield washer fluid: Windshield washer fluid is generally divided into two types: summer use and winter use. Summer windshield washer fluid includes insect-removing agents to quickly clean insect residues on the windshield. Winter windshield washer fluid ensures that it does not freeze or damage vehicle facilities even when the external temperature drops below -20 degrees Celsius. Precautions for using windshield washer fluid: In winter, it is essential to use a specialized windshield washer fluid with a lower freezing point; otherwise, the fluid may freeze due to low temperatures. When a liquid freezes, its volume expands, which can damage the windshield washer fluid reservoir. If the windshield washer fluid is low, avoid using water as a substitute because water contains impurities that can easily clog the washer nozzles. When purchasing windshield washer fluid, avoid low-quality products as they can accelerate the aging of windshield wipers.