Correct answer
Yes, by checking the level and that the nozzles are not blocked.
Yes. Regularly check the fluid level and that the nozzles are unobstructed to maintain visibility. Refill using the manufacturer-specified fluid and dilution, suitable for expected temperatures. Dedicated washer fluid may contain cleaning agents; that does not mean you should add household detergent yourself. This maintenance is not limited to preventing engine overheating.
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No; it only needs checking when the engine overheats.
Yes, by checking the level and that the nozzles are not blocked.
Yes; add household detergent even when it is not approved by the manufacturer.
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