Spark plugs are small but essential components of your engine. They deliver the electrical spark that ignites the air-fuel mixture in the combustion chamber, powering your car. Without properly ...

Spark plug lifespan depends on the electrode material. Copper plugs last 20,000 to 30,000 miles, platinum plugs last around 60,000 miles, and iridium plugs last 80,000 to 100,000 miles. Worn plugs ...