How often should the spark plugs of the Baojun 730 be replaced?
2 Answers
The spark plugs of the Baojun 730 should be replaced every 40,000 kilometers. Commonly known as spark plugs, their function is to discharge the pulsed high-voltage electricity sent by the high-voltage wire, breaking down the air between the two electrodes of the spark plug to generate an electric spark, thereby igniting the mixed gas in the cylinder. The main types of spark plugs include: standard spark plugs, insulator-protruding spark plugs, electrode-type spark plugs, seat-type spark plugs, pole-type spark plugs, and surface-jump spark plugs, among others. The Baojun 730 is a family MPV product under SAIC-GM-Wuling Baojun. The vehicle has a length, width, and height of 4685 mm, 1785 mm, and 1735 mm respectively, with a wheelbase of 2750 mm. In terms of appearance, the front design of the car is very grand and full, featuring a simple U-shaped chrome contour line paired with a double horizontal bar grille, along with the black bumper and chrome trim below, adding a sense of layering.
The replacement interval for the Baojun 730's spark plugs is generally every 20,000 to 30,000 kilometers if driven frequently, but it ultimately depends on the spark plug type and your driving habits. I often help friends diagnose car issues and find that the original spark plugs mostly feature standard copper-core designs with a lifespan not exceeding 30,000 kilometers—especially under stop-and-go urban driving conditions where wear is more severe. When ignition performance declines, the vehicle may experience shaking, difficulty starting, and a noticeable increase in fuel consumption. Regular inspection and replacement can prevent carbon buildup and protect overall engine performance. It's recommended to have a professional shop check the spark plug gap every 20,000 kilometers or upgrade to premium iridium spark plugs to extend maintenance intervals—this approach saves both hassle and money. Don’t wait until problems escalate, as it could risk damaging the catalytic converter.
