The life of a spark plug is not fixed and is affected by many factors.

Common types of spark plugs include nickel alloy, platinum, iridium, double iridium, iridium platinum, ruthenium electrodes, etc.
1. Nickel alloy spark plugs generally need to be replaced between 20,000 and 30,000 kilometers, and are relatively cheap.
2. Platinum spark plugs usually have a service life of 30,000 to 50,000 kilometers, and have good durability.
3. Double platinum spark plugs are replaced after about 80,000 kilometers.
4. Iridium spark plugs can last about 100,000 kilometers.
5. Ruthenium electrode spark plugs can be used for 150,000 kilometers before they need to be replaced.

However, the use and maintenance cycles of spark plugs vary for different models and engines.
The car maintenance manual stipulates that the mileage for spark plug replacement is 15,000 kilometers, and it is recommended not to exceed 30,000 kilometers. Most of the common nickel alloy spark plugs in the original car spark plugs are used for about 20,000 kilometers. Ordinary nickel alloy spark plugs need to be replaced every 20,000 kilometers, platinum alloy spark plugs are replaced every 40,000 kilometers, and iridium spark plugs can be replaced within 60,000-80,000 kilometers.

If it is a naturally aspirated engine, the service life of nickel alloy spark plugs is 20,000 to 30,000 kilometers, platinum spark plugs are 40,000 to 50,000 kilometers, iridium spark plugs are 60,000 to 80,000 kilometers, platinum spark plugs are 60,000 to 80,000 kilometers, and double iridium spark plugs are 80,000 to 100,000 kilometers.
However, if it is used in a turbocharged engine, the original car standard is generally platinum or above, with a service life of 40,000 to 60,000 kilometers.

Conclusion
Everyone’s driving habits, oil quality and road conditions will affect the service life of spark plugs. When the car is difficult to start when it is cold, there is a noticeable sense of frustration when driving, idle vibration, or the engine acceleration performance decreases, the spark plugs should be checked in time.
When doing maintenance, ask the repairman to help check and replace it properly to avoid unnecessary losses.
