Is it necessary to replace the fuel filter?
2 Answers
The fuel filter needs to be replaced. Replacement mileage: The replacement mileage varies slightly depending on the brand and model of the vehicle. Generally, the external fuel filter should be replaced during each maintenance service. The internal fuel filter should be replaced approximately every 40,000 to 60,000 kilometers. Impact on fuel consumption: When the fuel filter becomes severely dirty, it can cause poor fuel supply to the engine. The engine control unit, failing to meet the required air-to-fuel ratio (AFR), will increase fuel supply to compensate. This not only affects the vehicle's acceleration performance but also increases fuel consumption. In such cases, replacing the fuel filter can significantly reduce fuel consumption.
I've driven quite a few cars and feel that regularly changing the fuel filter is quite necessary. The fuel filter, also known as the gasoline strainer, filters out impurities in the fuel, such as dust or sediment, preventing them from clogging the fuel system. If not replaced, over time the filter mesh gets blocked, fuel flow becomes restricted, and the car may fail to start, experience engine shaking, or suddenly stall, which is both annoying and dangerous. I recommend following the mileage intervals suggested in the manufacturer's manual, usually every 20,000 to 40,000 kilometers. It's not too troublesome—you can even take a look at it yourself—but it's best to have a professional shop handle it to ensure it's done thoroughly. After replacement, the car runs more smoothly, and it can also extend the engine's lifespan, avoiding costly major repairs down the line. Don't underestimate it; proper maintenance of small components can keep your beloved car running longer.
