The material of a spark plug directly impacts its conductivity, heat resistance, and lifespan. Different materials offer varying performance advantages, and choosing the right spark plug can enhance engine efficiency while reducing maintenance costs.
1. Common Spark Plug Materials and Their Characteristics
- Copper Core: High conductivity and low cost, but wears out quickly (lasting about 20,000–30,000 km). Best for older vehicles or short-term use.
- Platinum: High-temperature resistance and corrosion resistance, offering a longer lifespan (60,000–80,000 km). Suitable for daily driving.
- Double Platinum: More durable than single platinum, ideal for vehicles with complex ignition systems.
- Iridium: Excellent conductivity, durability, and a finer electrode for precise ignition. Can last over 100,000 km, making it perfect for high-performance or turbocharged engines.
2. How to Choose the Right Spark Plug?
For regular vehicles, platinum or double platinum spark plugs balance durability and cost-effectiveness. For performance or modified cars, iridium spark plugs ensure better combustion efficiency and quicker engine response.
Understanding these materials helps in selecting the best spark plug for optimal engine performance and long-term savings.
