What is the replacement interval for spark plugs in the Buick Excelle 1.3t?
1 Answers
The replacement interval for spark plugs in the Buick Excelle 1.3t is approximately 30,000 kilometers. Below is relevant information about automotive spark plugs: 1. Types of spark plugs: Standard spark plugs, insulator-tip spark plugs, fine-wire spark plugs, tapered-seat spark plugs, multi-ground spark plugs, and surface-gap spark plugs. 2. Function of spark plugs: The role of spark plugs is to discharge the high-voltage pulses delivered by the ignition cables, breaking down the air between the two electrodes to generate an electric spark, thereby igniting the air-fuel mixture in the cylinder. 3. Working principle: Under high voltage, the air between the center electrode and the side electrode of the spark plug rapidly ionizes, forming positively charged ions and negatively charged free electrons. When the voltage between the electrodes reaches a certain level, the number of ions and electrons in the gas increases like an avalanche, causing the air to lose its insulating properties.