How Often Should Spark Plugs Be Replaced in a New Car?

[AshlynDella]

The replacement interval for spark plugs in a new car depends on their material: 1. Nickel alloy spark plugs should be replaced approximately every 20,000 kilometers; 2. Platinum spark plugs should be replaced approximately every 40,000 kilometers; 3. Iridium spark plugs should be replaced approximately every 60,000 to 80,000 kilometers. The steps for replacing spark plugs are: 1. Turn off the engine and remove the spark plug cap; 2. Unscrew the old spark plug counterclockwise; 3. Screw in the new spark plug clockwise; 4. Reattach the spark plug cap; 5. Check everything is correct and start the engine for a test. Spark plugs, commonly known as "fire mouths," work by discharging the high-voltage pulse electricity sent through the high-voltage wire, breaking down the air between the two electrodes of the spark plug to generate an electric spark that ignites the air-fuel mixture in the cylinder.