At what mileage is a car in its best condition?

[Pereira]

After driving 5,000 kilometers, a car reaches its optimal performance. Introduction to optimal performance: Generally, a car needs to go through a proper break-in period to achieve optimal performance. Typically, maintenance is required every 5,000 kilometers, including replacing the engine oil, oil filter, fuel filter, and air filter in the lubrication system. The engine oil should be changed every 5,000 kilometers because it is nearing its usage limit, and both its lubricity and viscosity start to degrade. If not replaced, it will fail to lubricate the engine properly, affecting the engine's lifespan. When changing the oil, avoid adding unnecessary additives or wear-resistant agents. Notes on changing engine oil: When replacing the engine oil, it is essential to also replace the oil filter. If you skip replacing the oil filter to save money, the performance and effectiveness of the new oil will be significantly compromised. Additionally, other consumable parts of the vehicle should be replaced on schedule, such as brake pads, wiper blades, tires, belts, batteries, and brake fluid.