Toyota Yizhi 1.8 has traveled 654.38+10,000 kilometers, and now the urban fuel consumption is 1 1. Do you need to change the spark plug to clear the throttle?

General spark plugs are divided into resistance spark plugs, wave gold spark plugs and iridium spark plugs. The life of resistance spark plug is about 20,000 kilometers, the life of wave gold spark plug is 40,000 kilometers, and the life of iridium spark plug can reach 60,000-80,000 kilometers. Generally, the original spark plugs of low-end cars are resistive spark plugs, and those are high-end luxury models. Spark plug is the key of automobile ignition system, and ignition system is the focus of engine work. Therefore, replacing the spark plug regularly is directly related to the working performance and efficiency of the whole vehicle.