Can a new car go on the highway during the break-in period? What speed is appropriate?

[VonLogan]

New cars can go on the highway during the break-in period, and the speed can be any as long as it does not exceed the maximum speed limit. Here is the relevant introduction: Introduction to car break-in: When the transmission parts of a new car are initially running, the relative speed of the contact points should not be too high, and the lubrication should be replaced in time to prevent metal debris suspended in the lubricating oil from entering the friction surface and accelerating the wear of the parts. The process in which new transmission parts undergo a period of operation and friction, making the contact between the joints and meshing surfaces very compatible and the surface very smooth, is called break-in. Precautions: Avoid overload driving. Do not drive at high speeds. Use high-quality gasoline. Modern car manufacturing processes have made it possible for cars to not require a break-in period.