How often should platinum spark plugs be replaced?
2 Answers
Platinum spark plugs generally need to be replaced every 100,000 kilometers, while ordinary copper-core spark plugs should be replaced every 50,000 kilometers. The maintenance intervals specified by different car manufacturers vary, so the specific replacement cycle should follow the manufacturer's requirements. Platinum spark plugs are made of platinum, a naturally occurring white precious metal, which offers better durability and a longer service life compared to ordinary spark plugs. The function of a spark plug is to introduce tens of thousands of volts of high voltage into the combustion chamber and generate an electric spark to ignite the air-fuel mixture. Working in conjunction with the ignition system and fuel supply system, spark plugs play a significant role in determining the engine's performance.
I've driven quite a few cars and used platinum spark plugs, which feel quite durable. They typically last between 60,000 to 100,000 kilometers before needing replacement. For someone like me who frequently takes long trips, I always have the ignition system checked during every maintenance service. If the spark plugs are worn out, the car will idle roughly, lack power during acceleration, and even see a noticeable increase in fuel consumption. Back when I drove older cars, copper spark plugs had to be replaced every 30,000 kilometers, but platinum ones are much more hassle-free, averaging one replacement every five years, which is pretty good. I've also noticed that difficulty starting in winter can be another warning sign. Remember to regularly check the cylinder head seal to prevent air leaks that could affect spark plug lifespan. In short, safety comes first—don't wait until you're stranded to think about replacing them. Just find a reliable repair shop to get it done.
