What Material is Good for Spark Plugs?

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Spark plugs made of platinum and iridium are good choices. Platinum and iridium are precious metals with excellent resistance to high temperatures, high pressure, and corrosion. Using these materials for spark plugs can significantly extend their service life. Replacement cycle for spark plugs: 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. The following standards can be referenced for maintenance and 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. Spark plug models are classified based on material and shape. By material, they can be divided into: nickel alloy spark plugs, platinum spark plugs, and iridium spark plugs. By shape, they can be categorized as: standard spark plugs, electrode spark plugs, insulator-tip spark plugs, seat-type spark plugs, and surface-gap spark plugs. By heat range, they can be classified as: cold-type spark plugs and hot-type spark plugs.