How Many Kilometers Should Vehicle Spark Plugs Be Replaced?

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Spark plug replacement cycle: Under normal maintenance conditions, spark plugs should be replaced after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine, so it is recommended to follow the user manual. You can refer to the following standards for maintenance replacement: platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers. What are the impacts of damaged spark plugs: If the spark plugs are damaged, it can directly cause issues such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The most significant problem is difficulty in ignition, affecting the normal use of the vehicle. Severe erosion of the spark plug, such as scarring at the top, damage, or melted and eroded electrodes, indicates that the spark plug is damaged and should be replaced. What symptoms indicate damaged spark plugs in a car: Damaged spark plugs can lead to the following situations: difficulty starting, low power, excessive exhaust emissions, and increased fuel consumption.