Can I mix screen wash?

Glass cleaners from different brands can be mixed temporarily, but long-term mixing is not recommended for performance and safety reasons. Mixing glass cleaners with different formulations may produce precipitates, causing nozzle clogging or increasing friction between the wiper blades and the windshield, which affects cleaning effectiveness and may scratch the glass. Special attention should be paid to seasonal compatibility: summer glass cleaner contains insect-removing agents, while winter glass cleaner has antifreeze properties (with a freezing point of -20 to -40 degrees Celsius). In emergencies, you may temporarily mix products designed for the same season or add distilled water, but for regular use, you should select a single brand of glass cleaner that meets seasonal requirements. It is best to use ready-to-use liquid products to ensure optimal cleaning and system safety. Regularly checking the washer fluid level and timely switching between seasonal products are essential for maintaining windshield visibility and driving safety.