What Material Should Be Chosen for Spark Plugs?

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Spark plug materials generally include nickel alloy spark plugs, platinum spark plugs, rhodium-platinum spark plugs, and gold spark plugs. Among these, platinum spark plugs and gold spark plugs perform well. The quality of spark plugs directly affects the vehicle's normal ignition and driving performance. Below is a relevant introduction to spark plug materials: 1. Nickel alloy spark plugs: These are the most common type of spark plugs and cannot be used in high-end vehicles; they are only suitable for low-end models. Their lifespan is approximately 20,000 kilometers. 2. Platinum spark plugs: The main characteristics of platinum spark plugs are their long lifespan, excellent durability, and stable spark performance, making them suitable for harsh conditions. Their lifespan is approximately 40,000 kilometers. 3. Rhodium-platinum spark plugs: These spark plugs use rhodium-platinum as the central electrode, which improves ignition performance and enhances the engine's ignition sensitivity. The lifespan of rhodium-platinum spark plugs is approximately 60,000 kilometers. 4. Gold spark plugs: Tantalum gold material has high hardness, high resistance, and a high melting point. Gold spark plugs offer the best performance. Gold is the most corrosion-resistant and precious metal, capable of meeting the demands of high-power engines and withstanding high-temperature environments, preventing the electrodes from melting or being damaged easily. However, their price is correspondingly high, ranging in the tens of dollars. Gold spark plugs can be replaced approximately every 6,000 to 8,000 kilometers.