How Long Does an Iridium-Platinum Spark Plug Last?

[LaTucker]

Iridium-platinum spark plugs should be replaced after 80,000 to 100,000 kilometers. Under normal maintenance conditions, car spark plugs are typically replaced between 40,000 and 60,000 kilometers. However, this may vary depending on the brand and engine type, so it's advisable to follow the manufacturer's manual. Here are some general maintenance guidelines for reference: 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 for replacing spark plugs: Open the hood and remove the plastic engine cover. Disconnect the high-voltage ignition wires, marking each wire according to its corresponding cylinder to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any external debris like leaves or dust and ensure the area is thoroughly cleaned. Insert the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to fully tighten it. Reinstall the high-voltage ignition wires in the correct firing order and reattach the cover.