How Long Does It Take for a New Car to Complete the Break-in Period?

[DeGabriela]

Generally, it takes 1000~1500 kilometers. Below is relevant information about the car break-in period: 1. Concept: Break-in is also known as running-in. The car break-in period refers to the initial driving phase of a new car or after a major overhaul, typically 1000~1500 kilometers. This is the essential mileage required to ensure that mechanical components fully contact, frictionally adapt, and settle into their final form. During this period, the car's various parts can adjust and enhance their ability to adapt to the environment, while also wearing down any protrusions on the components. 2. Key Points to Note: Piston rings are usually composed of compression rings and oil rings. As the names suggest, compression rings are used to seal gases (preventing the mixture or exhaust gases in the cylinder from entering the crankcase, thereby avoiding a decrease in engine power and preventing oil contamination), while oil rings are used to seal oil (since the crankshaft flings oil from the crankcase onto the cylinder walls, the oil ring's role is to scrape off this oil), preventing oil from entering the combustion chamber and causing oil burning issues.