What is the reasonable interval for replacing the wiper blades?

Usually, the wiper blades should be replaced approximately once a year. If the car is driven a lot, a reasonable interval for replacing the wiper blades may be six months. It is recommended to replace the wiper blades whenever you notice that the wiping performance has deteriorated. Poorly maintained wiper blades may scratch the surface of the windshield. Even newer wiper blades may be damaged in freezing temperatures if the wiper blades are pulled off from a frozen windshield too hard, for example. After that, the wiper blade will no longer work well.

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