The 4S shop said that it was no problem to change it after 7000 kilometers, but the main reason was not the congestion in the city, mainly because the quality of the original engine oil was really poor and the brand branding was not very high-end. 10,000 kilometers, if it is out of insurance, it will be easy to switch to high-end full synthesis. I changed the imported GT Maroon 5 engine oil. Under normal circumstances, I changed it once every 13000 km. My city and highway take about seven or three minutes, and the power experience is first-class.