Why should we replace the fuel filter regularly, for no change in the end with what impact?

Why should we replace the fuel filter regularly, for no change in the end with what impact? It is necessary to think of the role of the fuel filter lies. As the name suggests, the role of the fuel filter is the filter motor fuel. In general, the fuel for private cars are petrol-based, so the fuel filter is a filter. We know that gasoline is gas station management software made through a complex process of refining crude oil from the then transport via a special way to the various gas stations, and ultimately delivered to the owner of the fuel tank. In this process, gasoline is inevitable impurities will enter the fuel tank, in addition, with the use of time, the impurity will increase. This filter is used to filter the Fuel management systems will appear dirty, with full waste, and so on, the filtering effect will be greatly reduced. It is proposed to replace the number of kilometers, if you do not change or delay change, certainly affect the performance of the car, causing the oil to poor, vehicle refueling boring phenomenon, leading to chronic destruction of the engine, or even overhaul the engine. How many such costs can be worth the price of the fuel filter.