What Happens If Spark Plugs Aren't Replaced for 100,000 Kilometers?

1 Answers
LeClara
07/30/25 3:33am
If spark plugs are not replaced for 100,000 kilometers, it can lead to decreased vehicle power and increased fuel consumption. Regular replacement of spark plugs is recommended. Below is more information about spark plugs: 1. Spark plugs are wear-and-tear parts that require periodic replacement. Prolonged use can cause the electrode gap to widen, affecting spark plug ignition. If spark plugs are not replaced for an extended period, carbon deposits may form on the electrodes, further impairing ignition. 2. After removing the spark plugs, cover the spark plug holes with stickers to prevent foreign objects from falling into the cylinders. 3. When installing spark plugs, always use a professional torque wrench to tighten them to the specified torque. Failure to do so may cause cylinder leakage, resulting in reduced engine power. 4. When tightening spark plugs, ensure they are neither too tight nor too loose. Over-tightening may cause the spark plugs to break, which can severely damage the engine.
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