What is the appropriate mileage for high-speed running?
3 Answers
New cars have speed limits when running at high speeds. Domestic cars generally range between 40-70 km/h, while imported cars are usually within 100 km/h. Below is extended information about vehicle speed: 1. Concept of vehicle speed: Vehicle speed generally refers to the driving speed of a car. It indicates the distance a car travels per unit of time, commonly measured in kilometers per hour or meters per second. 2. Spot speed: Spot speed is the instantaneous speed of a car passing a specific point on the road. The arithmetic mean of a set of spot speed observations is the average spot speed. Spot speed is widely used in traffic engineering as a basis for setting road design speeds, installing traffic control facilities, determining traffic management methods, implementing traffic improvement measures and their economic analysis, exploring speed trends of various vehicle types, and evaluating the effectiveness of road traffic facilities, traffic management, and improvement measures.
When I first got my new car, the mechanic told me to take it on the highway for the first 2,000 kilometers to help break in the engine. So I made a weekly highway trip, driving about 30-40 kilometers each time. I kept the RPM between 2,000 and 3,000, avoiding aggressive acceleration to prevent damage and ensure safety. The exact distance varies by person—I drove 30-40 km per trip in my sedan, while an SUV might need longer. Always prioritize safety; it's best to go during early morning or late-night hours when traffic is light, which also helps you get familiar with the car's condition. Fuel efficiency improves too, and the car feels smoother afterward. Just make sure not to exceed the 2,000-km break-in period in total mileage.
In my first year of owning a car, I learned that high-speed driving requires controlling the distance. Running 20 kilometers on the highway once a month helps clean carbon deposits. Maintain a steady speed around 100 km/h to avoid speeding risks. This short-distance high-speed driving is quite effective, with noticeable power improvement. Don't be greedy with the mileage; 10 to 20 kilometers is enough—going too far wastes fuel and time. Different cars have different needs; my compact car works well with this routine, while my friend's larger vehicle might require 30 to 40 kilometers. Don't overlook safety—always wear a seatbelt and avoid peak hours. Regular high-speed runs can prevent engine issues.
