What is the maximum speed for a new car during the break-in period on the highway?
2 Answers
When a new car is in the break-in period, it can safely reach speeds of up to 120 kilometers per hour, which is also the maximum legal driving speed in China. Below is additional information about the break-in period for new cars: 1. During the break-in period, avoid running the engine at excessively high RPMs, as this can increase engine wear. 2. New car engines typically come with initial fill oil, which is highly suitable for use during the break-in period. 3. Ensure the first maintenance is done on time—neither earlier nor later than scheduled. After the first maintenance, the engine can be operated at higher RPMs. 4. When changing the oil during the first maintenance, choose oil that is appropriate for your car's engine. Generally, naturally aspirated engines can use 30-viscosity oil, while turbocharged engines can use 40-viscosity oil. For high-performance, large-displacement, multi-cylinder engines, 60-viscosity oil may be suitable. 5. It is recommended to choose full synthetic oil. Although more expensive, it offers better lubrication, a longer lifespan, and overall, the cost difference compared to mineral oil is not significant.
Having driven for over a decade, I'm particularly cautious about high-speed driving during a new car's break-in period. The general recommendation is not to exceed 120 km/h, especially within the first 1,000 kilometers. Driving too fast at speeds like 140 km/h or above can cause excessive engine RPMs, leading to accelerated wear on pistons and cylinder walls. I've seen many friends aggressively push their new cars at high speeds during the break-in period, only to experience increased engine noise and higher fuel consumption within just a year. It's best to maintain speeds between 80 to 110 km/h for more even component wear. Also, remember to avoid prolonged constant-speed driving—occasionally varying your speed gives the engine some variation. New car manuals usually provide detailed guidance, and I always check that little booklet first to confirm. Safety comes first, as poor break-in practices might lead to expensive repairs down the road.
