How to Solve the Engine Light Caused by Poor Fuel Quality?

[AmaraMarie]

If the engine light is caused by poor fuel quality, you can drain all the bad fuel and refill with high-quality fuel. In some cases, the engine fault light will turn off by itself after about half a minute of driving. Below is relevant information: Fuel quality is the main cause of the engine fault light: 1. The anti-knock property of gasoline is indicated by the octane number. The higher the octane number, the better the anti-knock property. For example, 97-octane gasoline has an octane number greater than 97. Leaded gasoline can cause lead poisoning in the oxygen sensor, so fuel quality is a major factor in insufficient engine combustion, leading to the engine fault light turning on. 2. The engine has specific requirements for fuel quality indicators, especially as regulations in various regions impose higher demands on engines, thus requiring higher fuel quality standards. When refueling, always use the appropriate fuel grade for your vehicle and avoid using inferior fuel. Additionally, always refuel at reputable dealers to ensure fuel quality; otherwise, it may cause damage to your vehicle.