How Many Spark Plugs Does a Sedan Have?

[VictoriaMarie]

Generally, a four-cylinder car has four spark plugs, while a six-cylinder car has six. Below is some relevant information: Introduction: A spark plug is a component in the ignition system of a gasoline engine that introduces high-voltage current into the cylinder to generate an electric spark, igniting the combustible gas mixture. It mainly consists of a terminal nut, insulator, terminal post, center electrode, side electrode, and shell, with the side electrode welded to the shell. Maintenance and Replacement: The service life of spark plugs is relatively short. Automakers stipulate that spark plugs must be inspected or replaced after 3,000 km of driving. With improvements in spark plugs and related ignition systems, along with some exhaust purification measures, the lifespan of spark plugs has significantly increased. Generally, it is required to inspect or replace spark plugs after 10,000 km of driving. Platinum electrode spark plugs have a longer service life and typically do not require inspection or replacement within 100,000 km of driving.