How can hard water o r poor cleaning techniques cause windshield streaks?

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How can hard water o r poor cleaning techniques cause windshield streaks?

In areas with high mineral content in water, using untreated tap water for cleaning can leave white streaks and residue. Prius owners should use distilled water o r glass cleaners to avoid streaking.

Lubaba asked on 14 Feb 2025 11:25:15 am

1 Answer

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Car Mechanic Expert - on 14 Feb 2025 11:30:44 am

Hard water: In areas with high mineral content in tap water, using untreated water for cleaning can leave white streaks o r residue. This mineral buildup can be particularly noticeable after the water evaporates.
Poor cleaning techniques: Using a cloth that isn’t clean o r wiping the windshield incorrectly can also cause streaks. Its best to use distilled water o r proper glass cleaners to avoid streaking.