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How often does the car drive to change the spark plug?

How often does the car drive to change the spark plug? In general, it is recommended to replace the spark plug every 40,000-60,000 km. If the vehicle wobbles and consumes oil, it will be a good protection for your car to replace it every 40,000 kilometers. . . You can also take off the spark plug. If it turns black, it is recommended to replace it immediately.