How often should the spark plugs be replaced in an eighth-generation Accord?

[LaRyan]

Replacement interval for spark plugs in the eighth-generation Accord: Under normal maintenance conditions, replacement is recommended every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type. It is advisable to follow the guidelines in the owner's manual. You can refer to the following maintenance standards for replacement: Platinum spark plugs should be replaced every 40,000 kilometers, standard nickel alloy spark plugs every 20,000 kilometers, and iridium spark plugs every 60,000 to 80,000 kilometers. How spark plugs work: The ground electrode of the spark plug is connected to the metal shell, which is threaded into the engine block through the cylinder head. The insulator primarily serves to isolate the metal shell from the center electrode. The terminal nut is the part of the spark plug that contacts the high-voltage coil. When current passes through the terminal nut and the center electrode, it ionizes the medium between the center electrode and the ground electrode, generating a spark that ignites the air-fuel mixture in the cylinder.