Is engine oil not changed during the first maintenance?

[Bruce]

First maintenance requires changing the engine oil. The items covered in the first maintenance are quite simple, mainly including replacing the engine oil and oil filter, along with some routine vehicle inspections such as checking the wear on tires and brake pads, the levels of various fluids in the engine compartment, the level of coolant, lifting the vehicle to inspect the chassis for any signs of impact, and checking if the chassis brackets and tie rods are deformed. The primary purpose of changing the engine oil is to ensure the engine operates more efficiently. During the break-in period, the engine may generate some impurities internally, hence the need to replace the oil and oil filter to better lubricate the various components inside the engine.