How Often Should a Car's Fuel Filter Be Replaced?

[PaisleeLynn]

Under normal usage conditions, the fuel filter must be replaced every 30,000 kilometers for the following reasons: 1. External fuel filter: The replacement interval for an external fuel filter is generally recommended to be every 20,000 to 30,000 kilometers. This mileage is based on the long-term maintenance experience of many auto repair professionals. However, according to the regulations of 4S shops, the fuel filter is typically replaced every 10,000 kilometers. 2. Internal fuel filter: Generally, as long as the vehicle does not experience fuel system-related issues, replacement is unnecessary. This is partly because the fuel filter is installed inside the fuel tank, and its design structure is much more complex than that of an external filter, which also makes the replacement cost relatively higher.