Double Iridium Spark Plugs

Double iridium spark plugs is a high-end spark plug. Its central electrode and side electrode are both made of iridium, which is highly corrosion-resistant, hard and has a high melting point (2454℃). It has stable chemical properties and extremely low resistance, thus demonstrating excellent performance. It has outstanding electrical conductivity and high-temperature resistance, which can improve ignition efficiency and combustion efficiency. Thereby enhancing power output and reducing wear. It ignites quickly, saves fuel, and has a longer service life due to the corrosion resistance of iridium. However, its price is relatively high, roughly ranging from 100 to 300 yuan, and there are also price differences among different brands. Compared with other types of spark plugs, such as iridium-platinum spark plugs and platinum spark plugs, double iridium spark plugs, although they have excellent performance, are relatively expensive. However, its excellent performance can significantly enhance the engine's power and stability, making the driving experience more outstanding.

When the engine control unit issues an ignition signal, the ignition coil generates high voltage electricity, which is applied between the two electrodes of the double-iridium spark plug. Due to the gap between the two electrodes, high voltage will cause the air to be broken down, forming a powerful electric spark. This electric spark can ignite the combustible mixture in the cylinder, enabling the engine to work normally.

1. Strong ignition energy: Iridium has a low resistance, which enables it to conduct current more efficiently when powered on, resulting in a greater and more concentrated electric spark energy between the electrodes. This helps to ignite the mixture quickly and fully, enhancing the engine's power output and response speed.

2. Stable ignition performance: Both electrodes of the double iridium spark plug are made of iridium material, which has good chemical stability and is not easily affected by high temperature, high pressure and chemical corrosion. Under various operating conditions of the engine, it can maintain stable ignition performance, reduce the occurrence of misfire, and ensure the smooth operation of the engine.

3. Good cold start performance: During the cold start of the engine, the atomization effect of the mixture is poor, making ignition more difficult. The powerful ignition energy of the double-iridium spark plugs can easily ignite the cold mixture, making it easier for the engine to start, especially in cold weather.

4. Long service life: Iridium has high hardness and good wear resistance. The service life of double iridium spark plugs is generally around 60,000 to 100,000 kilometers, which is significantly longer than that of ordinary spark plugs.

5. Environmental protection and energy conservation: Due to its high combustion efficiency, double iridium spark plugs can reduce exhaust emissions and make positive contributions to environmental protection.

6. Low noise: Due to its excellent heat conduction performance and stable ignition performance, the double iridium spark plugs can reduce engine noise.

Under normal circumstances, the replacement cycle of double iridium spark plugs is 60,000 to 100,000 kilometers. However, the specific replacement time should be determined based on the vehicle's usage conditions, engine operation, and the actual state of the spark plugs. If a vehicle is frequently driven under harsh conditions such as high temperatures, high humidity, and frequent starts and stops, it may be necessary to replace it in advance.