How often should the spark plugs of the New Emgrand be replaced?
3 Answers
The spark plugs of the New Emgrand should be replaced every 20,000 kilometers. Spark plugs are a crucial component of gasoline engines, determining whether the engine can ignite properly. When the ignition coil, following the engine's firing order, delivers a pulsed voltage to the spark plug via the high-voltage wire, the spark plug uses this voltage to create an electric spark by ionizing the air between its two electrodes, thereby igniting the combustible air-fuel mixture in the engine cylinder. The New Emgrand is a compact model under Geely, with body dimensions of 4632mm in length, 1789mm in width, and 1470mm in height, and a wheelbase of 2650mm. In terms of power, the vehicle is equipped with a 1.5-liter inline 4-cylinder naturally aspirated engine, delivering a maximum power of 80KW and a maximum torque of 140NM, paired with either a 5-speed manual transmission or a CVT continuously variable transmission.
I've been driving an Emgrand for three years, and the spark plug issue really depends on the specific situation. The official maintenance manual suggests replacing them every 20,000-30,000 kilometers, but based on my experience, I recommend not pushing it to the limit. Last time I changed mine at 35,000 km, the mechanic showed me the old ones—the electrodes were completely worn down, and the ignition gap was huge. If you frequently drive on highways or enjoy heavy acceleration, they'll wear out even faster. Nickel alloy plugs are the cheapest but have a shorter lifespan, while iridium ones can easily last 50,000 km. The most hassle-free approach is to have the technician check them during every minor service. If you notice poor ignition, a sudden increase in fuel consumption, or difficulty starting the engine cold, it's likely time to replace the spark plugs.
My younger brother often works with Emgrand cars at the repair shop. He says the factory spark plugs are usually made of standard nickel alloy and last only about 20,000-30,000 kilometers. We've seen many owners stubbornly push them to 40,000 kilometers before replacement, only to end up with damaged ignition coils, costing hundreds more in repairs. Nowadays, we recommend upgrading to double platinum or iridium spark plugs. They're more expensive but can last 50,000-80,000 kilometers, making them more cost-effective in the long run. The key is to use a torque wrench during installation - incorrect tightening force may cause gas leaks or even break the plug inside the cylinder. This job is best left to professionals.
