How many kilometers should the spark plugs be replaced for the Baojun 730?
2 Answers
Baojun 730 should have its spark plugs replaced every 40,000 kilometers. The spark plug, commonly known as the sparking plug, functions by discharging the pulsed high-voltage electricity delivered by the high-voltage wire (spark plug wire), breaking down the air between the two electrodes of the spark plug to generate an electric spark, thereby igniting the air-fuel mixture in the cylinder. The key component of a spark plug is the insulator. If the insulator fails, the high-voltage electricity will "take a shortcut" and bypass the electrodes to ground, resulting in a no-spark condition. The Baojun 730 is a 7-seater family car customized by SAIC-GM-Wuling. In terms of body dimensions, it measures 4780mm in length, 1820mm in width, and 1755mm in height, with a wheelbase of 2750mm.
My Baojun 730 has run nearly 80,000 kilometers, and the spark plug issue really requires attention. I remember the mechanic suggested changing them at the 30,000 km service. Later, I checked the owner's manual and found the manufacturer actually recommends replacement every 30,000 to 40,000 km. For those who drive aggressively, they might need to check around 20,000 km. For occasional long-distance drivers like me, stretching to 40,000 km is fine. Delaying replacement is risky—my neighbor once waited until 60,000 km and ended up burning the ignition coil. The key is using the correct type: standard nickel alloy plugs won't last beyond 30,000 km, while iridium ones can go an extra 10,000 to 20,000 km. Pay attention to symptoms like sluggish acceleration or sudden fuel consumption increase—don't hesitate to get it checked immediately.
