How often should spark plugs be cleaned?
2 Answers
Spark plugs should be cleaned every 10,000 kilometers and replaced after driving 40,000 to 60,000 kilometers under normal maintenance conditions. However, this may vary depending on the brand and engine type, so it is recommended to follow the user manual. The following standards can be referenced for maintenance and 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. Damaged spark plugs can cause the following issues: If spark plugs are damaged, they can directly lead to leakage in the vehicle's ignition system, increased fuel consumption, reduced power, and other problems. The most significant issue is difficulty in ignition, affecting the normal operation of the vehicle. Severe erosion of spark plugs, such as scarring at the top, damage, or melted and eroded electrodes, indicates that the spark plugs are damaged and should be replaced.
I usually drive to and from work, so small components like spark plugs really need extra attention. Generally, I recommend checking them every 20,000 to 30,000 kilometers, and cleaning them as needed. If you frequently drive short distances in the city like I do, carbon deposits can build up easily, so the cleaning frequency should be higher—about once a year. If you mostly drive long distances with less carbon buildup, you can stretch it to three years. The cleaning method is simple—I’ve tried spraying them with a dedicated cleaner and wiping them dry. But if you notice engine shaking or a sudden spike in fuel consumption, take it to a repair shop immediately—don’t wait for bigger issues to arise. Regular maintenance can extend the lifespan of spark plugs, saving fuel and ensuring safety.
