Why is a China V diesel vehicle suddenly consuming more fuel?

[Scarlett]

The reasons for a sudden increase in fuel consumption in a China V diesel vehicle are as follows: 1. Insufficient tire pressure or aging tires: When tire pressure is too low, the contact area between the tires and the ground increases, leading to higher rolling resistance and increased fuel consumption. 2. Clogged air filter: The air filter may be obstructed, reducing airflow and causing the engine to consume more fuel. 3. Cylinder wear or air leakage: This results in low cylinder pressure, poor combustion efficiency, and higher fuel consumption. 4. Fuel injector issues: If the fuel injector pressure is inadequate, it can lead to poor diesel atomization. 5. Incorrect diesel grade: Using a diesel grade unsuitable for the seasonal temperature changes can also cause increased fuel consumption.