How Often Should the Car Oil Filter Be Replaced?

[LeAlan]

The replacement of the car oil filter is not based on time but on the mileage driven. It should generally be replaced every 5,000 kilometers. However, even if the mileage hasn't reached 5,000 kilometers, the oil filter is usually replaced whenever the engine oil is changed. Relevant details are as follows: 1. Since engine oil must pass through the oil filter to reach the lubrication points, the function of the oil filter is to filter out impurities from the oil entering the engine system. This prevents the continuous mixing of impurities during the oil's circulation process, which could lead to oil passage blockages and even serious consequences such as engine damage. 2. Gasoline is refined from crude oil through complex processes and then transported through specialized channels to various gas stations, eventually reaching the vehicle's fuel tank. During this process, impurities in the gasoline inevitably enter the fuel tank. Additionally, as usage time increases, the amount of impurities also rises. The filter used to clean the fuel will become dirty, significantly reducing its filtering effectiveness over time.