How often should spark plugs be replaced?
2 Answers
The replacement interval for spark plugs varies depending on the 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. Commonly known as spark plugs, their working principle is to discharge the pulsed high voltage delivered by 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. 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 for any errors and start the engine for a test run.
As a seasoned driver with years of experience, I've found that the replacement interval for spark plugs really depends on how you use them. Standard copper spark plugs aren't very durable—I usually recommend checking them every 30,000 to 40,000 kilometers or replacing them every two to three years. Once, I delayed replacement until 50,000 kilometers, and the engine started struggling to turn over while fuel consumption skyrocketed. The mechanic later told me the spark plugs were severely carbon-fouled. Platinum and iridium spark plugs last much longer, enduring up to 80,000 or even 100,000 kilometers, but this depends on your car's make and driving conditions. Paying attention to symptoms is crucial—if you notice sluggish acceleration or increased engine vibration, it's time for a replacement. Remember, regular maintenance helps save fuel and protect your car—don’t wait for problems to arise before fixing them.
