There are two kinds of fuel filter element, internal and external. The outer shell of the filter element is iron, and the inside is made of filter paper, which is used to filter impurities.
The service cycle of the external filter element is relatively short, and it can be replaced in about 50,000 kilometers. The built-in filter element is difficult to disassembly, so the filter element design at the beginning of the use of large-capacity long-effect filter cotton as a filter material, the built-in filter element is recommended to be replaced about 100,000 kilometers.
