Do Newly Replaced Spark Plugs Need a Break-in Period?

[DelSavannah]

Newly replaced spark plugs do not require a break-in period. However, to ensure optimal performance and extend their service life, it is advisable to avoid aggressive driving immediately after replacement. As an essential consumable component of the engine, the quality of spark plugs significantly impacts power output and the amount of carbon buildup. Commonly known as spark plugs, their function is to discharge the high-voltage pulses delivered by the ignition cables (spark plug wires), creating an electric spark that ignites the air-fuel mixture in the combustion chamber by ionizing the air gap between the two electrodes. The main types of spark plugs include: standard spark plugs, extended tip spark plugs, electrode spark plugs, seat-type spark plugs, pin-type spark plugs, and surface-gap spark plugs.