What is the recommended speed for running in a new car?
2 Answers
It is generally recommended to keep the speed below 80 during the break-in period. Here are some precautions regarding the break-in period: 1. Avoid emergency braking: Emergency braking not only impacts the braking system during break-in but also increases the load on the chassis and engine. It is best to avoid emergency braking within the first 300 kilometers. 2. Avoid overloading: Running a new car at full capacity during the break-in period can cause damage to the components. Therefore, within the first 1,000 kilometers, the load should generally not exceed 75%-80% of the rated capacity. 3. High-speed driving: Long-distance driving during the break-in period increases the continuous working time of the engine, which can lead to component wear. It is recommended to maintain a speed of 120 km/h with the engine speed not exceeding 3,000 RPM. If the speed exceeds 3,000 RPM, consider reducing the speed to keep it within 3,000 RPM. During long-distance driving, take breaks at service areas for about ten minutes.
When I first got my new car, the salesperson specifically advised me not to push the speed too high during the break-in period, preferably keeping it under 100 kilometers per hour, as the new engine, transmission, and other components hadn't fully seated yet. I usually drove between 80 to 90, which was safe for both city commuting and short highway trips, avoiding sudden acceleration or prolonged high-speed cruising to prevent excessive wear on piston rings and valves. For the first 1,000 kilometers or so, I also checked the engine oil level and tire pressure regularly to ensure proper system lubrication. After completing the break-in period and getting the first maintenance service, the car ran smoother, fuel consumption stabilized, and overall durability improved significantly. In short, follow the manual's recommendations—don't sacrifice long-term health for short-term thrills.
