What are the impacts of high mileage on a car?
1 Answers
The impacts of high mileage on a car are as follows: 1. Battery discharge: If the car is driven short distances daily, the battery is likely to discharge. The electricity consumed by each car start takes about 2 minutes of driving to recharge. Theoretically, driving for 10 minutes a day with fewer than 4 starts won't discharge the battery. However, the battery is usually not used just for ignition. People often listen to music or use air conditioning while driving, which gradually drains the battery, leading to discharge issues. 2. Engine oil degradation: Engine oil has a shelf life. If the mileage is too high without maintenance, the lubricating effect of expired oil will decline, affecting the engine's lifespan. Additionally, quality issues arising from exceeding the maintenance period may void the warranty. 3. Increased fuel consumption: Cars frequently started cold will have higher fuel consumption than usual. During a cold start, the engine operates in an open-loop control state. This differs from closed-loop control, which is only influenced by the oxygen sensor. Open-loop control adjusts fuel injection based on data from the engine speed, water temperature, air pressure, and multiple sensors.