What is a Running-in Car?
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Running-in car is also known as break-in car. Below is the relevant introduction: Automobile running-in: The surfaces of new automotive transmission components always have certain minor imperfections, resulting in less tight fitting and meshing between parts during operation, which causes more intense friction at contact points. If operated at excessive speeds, permanent damage to components may occur due to overheating at friction points or excessive loads. Therefore, during initial operation of new automotive transmission components, the relative speed at contact points should not be too high, and lubrication should be promptly replaced to prevent metal particles suspended in the lubricating oil from entering the friction surfaces and accelerating component wear. The process where new transmission components achieve perfect fitting and extremely smooth surfaces after a period of operational friction is called running-in. Running-in precautions: During the running-in period, a vehicle's load should not exceed 75% of the rated capacity. New cars should be loaded below the specified weight and passenger limits, and overloading must be avoided.