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If the center electrode tip becomes worn out into a round shape, it is possible that the sparks produced are not as effective, resulting in the fuel-air mixture being ignited less steadily. If this happens, engine horsepower decreases fuel consumption becomes worse, and engine lifetime may be negatively affected; we recommend regular replacement of spark plugs.
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| Cars: 15,000 to 20,000km |
| Small Car(6600cc)s: 7,000 to 10,000km |
| Motorcycles: 3,000 to 5,000km |
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* Service lifetime is an approximate guideline. Depending on the ignition system of the vehicle, the service lifetime may become shorter.
Results of Spark Plug Replacement
· Improved Mileage
· Better Starting
· Better Acceleration
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