What is the appropriate speed for a new car during the break-in period?

[BraydenRose]

During the initial break-in period, the car should be maintained at 60-70 km/h, with the engine speed not exceeding 2,200 rpm for optimal performance. In the middle stage of the break-in period, the speed can be increased from 60-70 km/h to 90-100 km/h, with the engine speed kept below 2,500 rpm for best results. In the later stage of the break-in period, the speed can be raised to under 120 km/h, with the engine speed not exceeding 3,000 rpm. Key points to note during the new car break-in period are as follows: 1. Engine break-in: This is the most crucial part of the entire vehicle break-in process. Although the engine has undergone cold running-in before leaving the factory, there are still some minor surface irregularities on internal components, which increase engine resistance and reduce efficiency. 2. Brake break-in: In a new car, the brake discs and pads have some surface unevenness, preventing them from fully contacting each other during braking, which affects achieving optimal braking performance and stopping distance.