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How often do spark plugs need to be replaced?
2024-12-04
The replacement cycle of spark plugs mainly depends on their material, and spark plugs of different materials have different replacement cycles. Common spark plug materials include nickel alloy, platinum, iridium, and iridium platinum alloy, with replacement cycles of:
Nickel alloy spark plugs: It is generally recommended to replace them after driving for about 20000 kilometers.
Platinum spark plug: The replacement cycle is about 40000 kilometers.
Iridium spark plugs: can be replaced after approximately 60000 to 80000 kilometers of use.
Iridium platinum alloy spark plug: The longest replacement cycle can reach about 120000 kilometers.
The effects of not replacing spark plugs include poor ignition, insufficient engine combustion, increased fuel consumption, decreased power, and even carbon deposits, which can affect engine performance.
The replacement cycle of spark plugs may vary among different brands and models. For example, it is recommended to refer to the vehicle manual for the replacement cycle of spark plugs for BMW and Volkswagen, which is usually between 40000 and 60000 kilometers.
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