As a manufacturer of Single Iridium Spark Plugs, we are frequently asked by users about the normal lifespan of our products. Generally, the normal lifespan of single iridium spark plugs is between 60,000 and 100,000 kilometers, but the exact duration is affected by factors such as the usage environment, driving habits, and vehicle operating conditions.
From a material perspective, the center electrode of a single iridium spark plug is made of iridium. Iridium has a high melting point and strong wear resistance, reducing electrode wear during high-temperature ignition. Compared to nickel alloy spark plugs, its lifespan can be extended by 2 to 3 times. However, if the vehicle is frequently driven in congested traffic, frequent start-stop cycles will increase the number of spark plug ignitions, potentially shortening the lifespan to 60,000 to 80,000 kilometers. If driven on highways or in good road conditions for extended periods, the lifespan can approach 100,000 kilometers.
Vehicle operating conditions also affect lifespan. Turbocharged engines have higher combustion temperatures, resulting in relatively greater wear on the spark plugs. It is recommended to appropriately shorten the replacement cycle within this range. We will indicate the recommended replacement mileage for the compatible vehicle model in the product manual. Users can also periodically check the spark plug electrode wear. If problems such as excessive electrode gap or severe carbon buildup are found, timely replacement is necessary.
If you are unsure about the lifespan of the Single Iridium Spark Plugs compatible with your vehicle, or need specific replacement recommendations for your vehicle model, please feel free to contact us. We will provide professional technical support.
