What is the recommended running-in speed for a car?
3 Answers
Car running-in speeds can be categorized based on different stages: 1. Initial running-in (within 500 km): Maintain speeds between 70-80 km/h with engine RPM not exceeding 2200; 2. Mid-stage running-in (500-1000 km): Keep speeds between 90-100 km/h with RPM below 2500; 3. Final running-in (1000-1500 km): Increase speed up to 120 km/h while keeping RPM under 3000. Important running-in precautions include: 1. Always warm up the engine and start smoothly; 2. Avoid maintaining one gear for extended periods; 3. Don't drive with heavy loads; 4. Minimize emergency braking; 5. Avoid prolonged continuous driving.
When I first bought my new car, I was excited but also a bit nervous because I wasn’t sure about the break-in speed. After checking the manual, it recommended keeping the speed between 50 to 80 km/h for the first 1,000 kilometers and avoiding sudden acceleration or hard braking. I followed this advice strictly, even on the highway, maintaining a steady speed around 70 km/h. After the engine gradually broke in, it now runs incredibly smoothly, and the acceleration response has improved. A mechanic friend told me that this method helps reduce wear on engine components and extends the engine’s lifespan. So, don’t rush to speed—treat your new car gently, and you’ll save on repair costs in the long run. Why not give it a try?
As someone who frequently deals with various cars, I recommend a break-in speed between 50 to 70 kilometers per hour as ideal. The internal components of a new car's engine need gradual wear-in. Driving too fast, exceeding 100 km/h, can easily lead to premature wear of piston rings or cylinder walls. Typically, the first 1,000 to 1,500 kilometers are the critical period, and maintaining a steady speed is more prudent. I've seen many vehicles develop engine noises or increased fuel consumption later due to high-speed driving during the break-in period. Remember, keeping the RPM between 2,000 to 4,000 is better, as this ensures even lubrication. Regular checks of fluids and following the manual's guidelines can help you avoid unnecessary troubles.
