At how many kilometers can a new car run on the highway?

[StEmerson]

A new car can run on the highway after 2,500 kilometers. By this mileage, the engine's internal oil film has formed, providing better protection for the engine during driving. Before running on the highway, it is advisable to change the engine oil and oil filter to avoid any abnormalities during high-speed driving. The main purpose of running a new car on the highway is to allow the engine to operate in a better environment. The duration of high-speed driving does not need to be too long; generally, 10 to 20 minutes is sufficient. For cars with engines above 1.5 liters, the speed should not exceed 80 kilometers per hour within the first 500 kilometers on the highway and should not exceed 120 kilometers per hour within the first 3,000 kilometers.