For machine filter、Air filter、Air conditioning filter，Everyone may be familiar with it，Steam filters are often ignored。Then，What is steam filter?How often should the steam filter be replaced?Let’s talk about it together。

Steam filter，Full name: gasoline filter，It is a type of fuel filter，It is to filter fuel impurities，Provide clean fuel to the engine，Important automotive parts that protect the engine and fuel supply system。

Gasoline in production、In the process of storage, transportation and use，It is inevitable that certain impurities such as iron oxide will be produced、Dust, etc.，Perhaps the oil quality of some gas stations is inherently poor，Contains a large amount of impurities，If these impurities are not seabet iofiltered out，If you bring it into the engine and fuel supply system，It may damage the cylinder or cause the injector to become clogged。This requires a steam filter to filter impurities，Ensure the normal operation of the vehicle。

Car filters are generally divided into two types，One is an in-line fuel filter，The other is the built-in fuel filter。

Our most common is the in-line fuel filter，It is on the outside of the outer tank，Connected to the oil inlet pipe，The main function of the fuel inlet pipe is to transport fuel into the engine。The biggest advantage of the in-line fuel filter is that it is easy to replace。

And built-in fuel filter，It is located inside the fuel tank，Difficult to replace，Maintenance costs are also higher。But the passing rate of gasoline is very high，And not easy to clog，But the disadvantage is that it is very troublesome to replace，If you want to replace it, you must first open the fuel tank，Unprofessional personnel can easily damage the car。

The steam filter replacement cycle is relatively long，Generally replace every 30,000-50,000 kilometers，The specific needs are based on your maintenance manual or actual usage。At the same time，It also depends on the quality of the gasoline you usually use。If the fuel impurity content is large，The probability of the gasoline filter becoming clogged will be greatly increased，The replacement cycle should be shortened appropriately。Another thing to note is，If the car has the following symptoms，Other causes have been ruled out，Maybe your fuel filter is dirty or clogged，It’s time to change。

1.Fast seabet loginacceleration and weakness，And the power drops obviously when the car is running under heavy load: the gasoline filter element is slightly clogged，Generally, it will cause poor oil supply to the engine，Resulting in a decrease in engine power。

2.Engine shaking when idling: gasoline filter is moderately clogged，Not only does it not make the car power worse，It will also cause the engine to vibrate when the car is idling。

3.Difficulty in starting or the car cannot start directly: When the gasoline filter is seriously clogged，The car may have difficulty starting or even fail to start。Sometimes it takes 2-5 times to light the fire。

Of course，The above fault phenomena need to be eliminated after other faults，Only can we determine that it is a problem with the fuel filter，Because the fault phenomena caused by fuel filter problems are similar to fuel system faults (such as clogged fuel injectors, etc.)。

Last，Remind riders，Most engines are equipped with disposable non-removable paper filter fuel filters，When replacing the gasoline filter，Be sure to buy genuine and high-quality filter elements，And operate according to the manufacturer's instructions。

If you use inferior filter elements，Not only the material is poor，And the filtering effect is poor，Soaked in gasoline for a long time，The filter element itself will have the filter layer falling off，Blocked oil line，Causing abnormal pressure in the fuel system，Directly causing insufficient engine power or insufficient combustion，The subsequent results will make you "unexpected"!