How often should the spark plugs of Geely GL be replaced?
4 Answers
Geely GL spark plugs should be replaced every 40,000 kilometers. Methods to determine if spark plugs are damaged: Remove the spark plugs and observe them. The condition of the spark plugs can be judged based on their appearance and color. Normal spark plugs have an insulator skirt and electrodes that appear gray-white, gray-yellow, or light brown. A properly functioning spark plug has a reddish-brown insulator skirt, with an electrode gap between 0.8-0.9mm and no signs of electrode burn. If the spark plugs are covered with oil or deposits but are not damaged, they can continue to be used after cleaning off the oil and deposits. If the spark plugs are severely damaged, with signs such as blistering at the top, black streaks, cracks, or melted electrodes, the cause of the damage should be identified. After troubleshooting, replace the spark plugs with new ones. Additionally, if the spark plugs appear black as if smoked, it indicates that the wrong heat range was selected or that the air-fuel mixture is too rich, with oil fouling.
Having driven for many years, I know that components like spark plugs should never be neglected. For the Geely GL, the official recommendation is generally to replace the spark plugs every 40,000 to 50,000 kilometers. For a driver like me, who maintains smooth driving habits, reaching the upper limit is no problem. However, if you frequently take short trips or idle a lot, the spark plugs wear out faster, and you might need to inspect them every 30,000 kilometers. The symptoms of a failing spark plug are quite obvious—clicking sounds when starting the car, a sudden increase in fuel consumption, and sluggish acceleration all indicate it’s time for a replacement. After installing new spark plugs, the engine runs much smoother, responds quicker, and even saves a bit of fuel. I’ve replaced them myself a few times—always buy genuine parts for safety, ensure you have the right tools, and don’t cut corners. If you’re unsure, it’s safer to have it done at a 4S shop. Regular maintenance checks are crucial—don’t wait for a minor issue to escalate into a bigger problem.
My experience in car repair tells me there's no fixed mileage for spark plug replacement. For the Geely GL, it's typically every 40,000 to 60,000 kilometers, depending on the spark plug type. Standard copper-core plugs may need replacement around 40,000 km, while iridium ones last longer, often exceeding 50,000 km. Common symptoms reported by owners include unstable idling and delayed ignition. I usually recommend checking the vehicle's condition along with the manual, as driving habits significantly impact wear—aggressive drivers experience faster spark plug deterioration. When replacing, avoid cheap, substandard parts as incorrect models won't fit. DIY replacement can save money, but remember to disconnect the battery and proceed step-by-step to prevent damage to other components. During regular maintenance, have technicians check the electrode gap—a small investment to prevent major repairs.
As a regular car owner, I pay close attention to spark plug replacement. The manual for my Geely GL recommends changing the spark plugs every 50,000 kilometers. However, my car is new and hasn't had them replaced in two years, though they've been checked twice and everything was normal. I mostly drive in urban and suburban areas and haven't noticed any issues. But if I experience difficulty starting the engine or significant engine vibration, I'll replace them earlier. A replacement costs a few hundred yuan, which isn't expensive, but delaying it could lead to increased fuel consumption, reduced power, or even engine damage. It's advisable to follow the maintenance schedule and have it done at a professional shop for peace of mind. If you drive less frequently, you can extend the replacement interval slightly, but always monitor your car's condition.
