How often should the spark plugs be replaced for the Geely Emgrand Million Edition?

[DelSerenity]

Geely Emgrand Million Edition spark plugs should be replaced every 80,000 kilometers. Methods to determine if spark plugs are damaged: Remove the spark plugs for observation and assess their condition based on the following visual color indicators. Normal spark plugs will have insulator skirts and electrodes appearing gray-white, gray-yellow, or light brown. Properly functioning spark plugs exhibit insulator skirts in a reddish-brown color, with electrode gaps between 0.8-0.9mm and no signs of electrode burning. If spark plugs are contaminated with oil or deposits but remain undamaged, they can continue to be used after cleaning off the oil and deposits. If spark plugs are severely damaged, showing symptoms such as blistering at the top, black streaks, cracks, or melted electrodes, the cause of damage should be identified. After troubleshooting, replace with new spark plugs. Additionally, if spark plugs appear black as if smoked, it indicates incorrect heat range selection, overly rich fuel mixture, or oil leakage.