How often should the engine oil be changed for the first time?

[RhettAnn]

The owner's manual recommends the first inspection at 3,000 kilometers or 3 months, and the first free oil change at 6,000 kilometers or 6 months. Below is a related introduction to automotive engine oil: Main functions and classifications of engine oil: Lubrication, cleaning, and heat dissipation. In terms of types, it can be roughly divided into three categories: conventional, semi-synthetic, and full-synthetic. Oil change intervals: Engine oil degradation has a certain timeframe. "Conventional" oil generally starts to oxidize after about 3 months of exposure to air, leading to reduced functionality. This means that if you change the oil but don't drive the car for 3 months, you should still change the oil again. Synthetic oils degrade in about 6 to 9 months. For driving conditions in China, conventional oil typically starts to degrade at around 5,000 kilometers, semi-synthetic at 7,500 kilometers, and full-synthetic at around 10,000 kilometers. Therefore, the generally accepted concept is to first consider mileage when determining oil change intervals: conventional oil at 5,000 kilometers, semi-synthetic at 7,500 kilometers, and full-synthetic at 10,000 kilometers.