What are the consequences of not replacing car spark plugs for a long time?

[DeKennedy]

Car spark plugs not being replaced for a long time can lead to the following consequences: 1. Difficulty in ignition, prone to stalling, insufficient power, weak acceleration, increased carbon deposits formation, manifested as lack of vehicle power, slow acceleration when stepping on the gas, and a missing gear in power; 2. Misfire causing cylinder non-operation or cylinder misfire, manifested as engine shaking, engine fault light turning on, and upon careful listening, the exhaust pipe sound is discontinuous with a popping noise; 3. Incomplete combustion leading to unqualified exhaust emissions, causing environmental pollution. Types of spark plugs include: 1. Standard spark plugs; 2. Projected insulator spark plugs; 3. Electrode spark plugs; 4. Seat spark plugs; 5. Pole spark plugs; 6. Surface gap spark plugs.