Correct answer
With suitable washer fluid, following manufacturer level and dilution instructions.
Use vehicle-compatible washer fluid suitable for the expected temperature, up to the manufacturer’s specified level. Dilute concentrate as instructed; do not add water to ready-to-use fluid unless its instructions permit it. Do not add household soap or mix products on your own initiative. Check the level regularly rather than waiting for the wipers to run dry.
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Always add household soap to the fluid, even without manufacturer instructions.
Only after fluid stops emerging and the wipers run dry.
With suitable washer fluid, following manufacturer level and dilution instructions.
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