What is the difference in fuel consumption between the break-in period and normal operation?

[NicoleAnn]

Break-in period fuel consumption is typically about 1 to 2 liters higher than normal fuel consumption. Here are the relevant details: Break-in period fuel consumption: Before the break-in process, the coordination between various components is not as smooth, resulting in greater frictional resistance, which naturally leads to slightly higher fuel consumption. The engine, transmission, and drivetrain—any component with resistance can contribute to higher fuel consumption, and all these parts require a break-in period. Normal fuel consumption: After the break-in period, the frictional resistance of the components decreases, operation becomes smoother, and fuel consumption slightly reduces. The fuel consumption of motor vehicles is considered normal if it matches the official MIIT (Ministry of Industry and Information Technology) fuel consumption per 100 kilometers or is within 3 to 5 points higher. The MIIT fuel consumption is marked on the vehicle, usually as a yellow label on the windshield, which can serve as a reference. Different driving habits and usage locations can also affect fuel consumption to some extent.