How much does it affect the engine when the car is full of inferior gasoline?

1. Colloids and impurities in inferior fuel will block the fuel supply system, resulting in engine performance degradation. Common phenomena such as difficulty in starting, inability to start and flameout during driving.

2. For a long time, inferior fuel will produce carbon deposits, such as carbon deposits at the intake, throttle, cylinder and valve, which greatly affect the performance of the engine, not only increasing the fuel consumption, but also not accelerating the power decline and increasing the failure probability of the engine.

3. The combustion of inferior fuel will affect the normal operation of oxygen sensor and three-way catalyst, leading to the failure of the whole engine system, and the failure of three-way catalyst will also lead to excessive emissions.

It is also simple to judge whether to add inferior fuel. After adding inferior fuel, the ride comfort of the car will be greatly reduced, and there will be obvious frustration when refueling, backfire and knocking will increase obviously. If the owner encounters this situation, in addition to using high-grade fuel, he can only bring some original fuel additives to improve the combustion of gasoline and improve its octane number and antiknock performance.