How Long Does an Iridium Spark Plug Last?

[MarianaMarie]

Iridium spark plugs should be replaced every 60,000 to 80,000 kilometers. Under normal maintenance conditions, car spark plugs are typically replaced after 40,000 to 60,000 kilometers of driving. However, this may vary depending on the brand and engine type, so it is recommended to follow the vehicle's manual. For reference, here are the standard maintenance intervals: platinum spark plugs should be replaced at 40,000 kilometers, standard nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers. Steps to replace spark plugs: Open the hood, lift the engine's plastic cover, and remove the high-voltage wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for external debris such as leaves or dust and ensure everything is cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the high-voltage wires in the correct firing order and secure the cover back in place.