How often should the EA888 spark plugs be replaced?

[AdalynnAnn]

Replace every 21,000 kilometers. Relevant explanations are as follows: 1. Introduction: According to the manual requirements for the third-generation EA888 spark plugs, the recommended replacement interval is every 21,000 kilometers. Spark plugs are crucial components of a gasoline engine's ignition system, which introduce high-voltage electricity into the combustion chamber and generate sparks by jumping across the electrode gap, thereby igniting the combustible mixture in the cylinder. 2. Additional notes: If the electrode and insulator appear light yellow, it indicates that the spark plug is in good working condition; if there are black deposits on the spark plug electrode, it suggests the need for repair or replacement, possibly due to "oil burning" or an improper mixture ratio.