What is the reason for the high fuel consumption of Haval h2s?

Haval's high h2s fuel consumption is due to vehicle maintenance, aging spark plugs, insufficient tire pressure and excessive carbon deposition. The following is the specific explanation for the above reasons: the vehicle is not maintained: the vehicle has not been maintained for a long time, and the oil and air filter elements are dirty, resulting in an increase in fuel consumption. Spark plug aging: spark plug aging, engine carbon deposition affects the ignition effect, resulting in high fuel consumption. Insufficient tire pressure: insufficient tire pressure will lead to a larger contact area between the tire and the ground, greater friction, greater driving resistance and higher fuel consumption. Excessive carbon deposition: The places with carbon deposition are throttle, fuel injector, air inlet and piston crown. Excessive carbon deposition anywhere will lead to incomplete combustion, which will lead to increased fuel consumption.