Is it better to drive a new car at high speed before or after the first maintenance?

[VanElliana]

It is recommended to drive a new car at high speed after the first maintenance. After the first maintenance is completed, potential issues such as the torque of various screws and the levels of different fluids have been inspected and addressed, allowing for a safer and more secure high-speed driving experience. Driving at high speeds can enhance the engine's performance. After the initial break-in period, the operation between mechanical components becomes more coordinated. At this stage, driving at high speeds and maintaining the engine at high RPM for a period can test the machine's extreme working conditions. Additionally, high-speed driving helps clean the engine's oil passages and cylinders. When the engine operates at high speeds, the fuel supply increases, and the flow rate of the fuel also rises, which helps flush out dirt and impurities from the oil passages, achieving a cleaning effect. Moreover, due to the high-speed movement of the pistons, the temperature inside the cylinders rises, and the flow and speed of air entering and exiting the valves increase, leading to more complete combustion. This helps remove carbon deposits from the valves and clears blocked passages, making them smoother.