How often should spark plugs be replaced in a new car?

1 Answers
SanRyder
07/29/25 11:10pm
The replacement interval for spark plugs in a new car depends on the material of the spark plugs: 1. Nickel alloy spark plugs should be replaced every 20,000 kilometers; 2. Iridium spark plugs should be replaced every 60,000 kilometers; 3. Platinum spark plugs should be replaced every 100,000 kilometers. The working principle of spark plugs is: under the control of the engine, the high-voltage electricity generated by the ignition coil is introduced into the engine cylinder, and a spark is generated between the gaps of the spark plug electrodes to ignite the mixed gas, ensuring the normal operation of the engine. The method for removing spark plugs: 1. Clean the dust and impurities around the spark plugs using compressed air or a soft tube to blow them away; 2. Ensure the engine is in a cold state before proceeding; 3. Protect the spark plug installation port immediately after removal to prevent impurities or dust from entering the cylinder; 4. Be careful not to damage the insulating porcelain body when using a wrench; 5. Do not bend or strike the center electrode when adjusting the spark plug gap.
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