What is the recommended speed during the break-in period of a car?
2 Answers
During the initial break-in period (below 500 km), the vehicle speed should not be too fast, maintaining between 60 to 70 km/h with engine RPM not exceeding 2,200. When the mileage reaches approximately 500 to 1,000 km (mid break-in period), the speed can be increased from 60-70 km/h to 90-100 km/h, keeping RPM below 2,500. Throughout the engine break-in period, it's advisable to keep RPM under 2,000. This allows the engine components to wear in smoothly through operation, achieving optimal clearance and extending engine lifespan. Brake break-in: New vehicles have slightly uneven surfaces on brake discs and pads, preventing full contact during braking. Proper break-in helps achieve optimal braking performance and stopping distance.
I just bought a new car recently, and I need to pay special attention to the speed during the break-in period. The break-in period generally refers to the first 1,000 kilometers or so of a new car. During this time, the parts haven’t fully settled in, and high-speed driving can accelerate wear and tear. I think it’s best to keep it below 80 km/h—for example, driving 60-70 km/h on city roads and not exceeding 100 km/h on highways. Why so slow? The engine internals have tiny burrs, and high-speed operation can generate frictional heat, damaging components. It’s also important to avoid sudden acceleration and hard braking; steady driving is better for breaking in all parts. I remember driving like this for the first month, and the fuel consumption was better controlled, with the engine sound becoming much smoother. After the break-in period, it’s safer to enjoy high-speed driving, and the car’s lifespan will be extended. In short, taking it slow is the right approach—car maintenance is a long-term investment.
