How Long Should the Spark Plug Socket Be?

[VonWyatt]

Generally, there are two sizes of spark plug sockets needed for replacement: 16mm and 21mm. Sedans typically use a 16mm spark plug socket, while vans use a 21mm spark plug socket. Spark Plug Replacement Interval: Under normal maintenance conditions, spark plugs should be replaced every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it's recommended to follow the user manual. Here are some general guidelines for replacement: 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 the spark plug socket to remove each spark plug one by one. While removing them, check for any external debris like leaves or dust and ensure the area is clean. Place 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.