What are the reasons for a new car consuming excessive fuel?

[LeSophie]

The reasons for a new car consuming excessive fuel are: 1. The driver's skill level is low, lacking driving experience; 2. The new car is in the break-in period, and many components require lubrication. The methods for using a new car during the break-in period are: 1. Preheating the cold car, as proper warm-up allows the engine oil to lubricate the engine internals effectively, reducing wear; 2. Timely maintenance is required for new cars during the break-in period. The reasons for a car consuming excessive fuel are: 1. Damaged pistons or piston rings, leading to oil burning and incomplete fuel combustion; 2. Inexperienced drivers keeping the accelerator pressed without lifting, not paying attention to shifting gears, inadvertently increasing fuel consumption; 3. Aging machinery, malfunctioning fuel control system; 4. Damaged fuel tank or fuel lines, causing fuel leakage; 5. Faulty oxygen sensor or partially clogged catalytic converter.