Function and replacement cycle of automotive fuel filter

Filter is the replacement of one of the highest frequency of parts in car maintenance. This filter contains oil filter, air filter, fuel filter, three important components of engine maintenance. Here to talk about the role of fuel filter and the replacement of conservation issues.

The fuel filter is arranged on the pipeline between the fuel pump and the throttle valve body inlet.

The role of fuel filter

Fuel filter, containing solid fuel in the iron oxide, dust and other debris removed to prevent fuel clogging (especially nozzle), reduce mechanical wear and to ensure the stable operation of the engine, and improves the reliability, fuel filter structure is composed of an aluminum shell and a stainless steel stent, on the bracket with efficient filter assembly and filter paper as a chrysanthemum shape, to increase the flow area.

General EFI carburetor and can filter filter. Because the filter often bear 200 ~ 300kPa EFI fuel pressure. Therefore, the compressive strength of the filter general requirements above 500kPa, carburetor filter can not meet the requirements.

Fuel filter replacement cycle

The fuel filter must be replaced once every 30 thousand km (conservative replacement mileage 15 thousand km). If the fuel impurity content, driving distance should be shortened accordingly. The fuel filter shell on the arrow indicates the direction of flow of fuel, fuel filter installation, are not allowed to flip. Even if it is in a very short time inversion work must also be replaced. By car manufacturers of different models of the maintenance cycle is not exactly the same, the replacement cycle to car manufacturers should prevail.

Fuel filter discrimination is very difficult, ordinary consumers do not do. Generally speaking, authentic products, packing quality are better, the packing box on the handwriting clear, overprint bright colours and marked with product name, specification, quantity, registered trademark, factory name, address and telephone number, etc., have qualified certificate and inspectors chapter.