What Are the Reasons for High Fuel Consumption?

[McElias]

High fuel consumption can be attributed to the following reasons: 1. Poor fuel quality: The quality of fuel directly affects fuel consumption. Inferior fuel with too many impurities can clog the fuel system. A clogged fuel system leads to an incorrect air-fuel ratio, resulting in a rich mixture where fuel is not fully burned before being expelled, thereby increasing fuel consumption. 2. Faulty oxygen sensor: The oxygen sensor primarily monitors the air-fuel ratio in the engine. If it malfunctions, the engine's air-fuel ratio becomes imbalanced, leading to higher fuel consumption. 3. Poor driving habits: Bad driving habits, such as sudden stops and starts or aggressive acceleration, can also increase fuel consumption.