What are the three filters?
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Automotive three filters are air filter, oil filter and fuel filter. The three filters play a filtering role for air, oil and gasoline on the automobile engine, thereby protecting the engine. The functions of the three filters are as follows: Air filter: Ensure the air entering the engine is clean. There is a lot of dust suspended in the air, the main component of which is silicon dioxide, a substance harder than metal. Installing an air filter can reduce the wear of parts such as cylinders, pistons and piston rings. Oil filter: Filter the oil to ensure the normal operation of the engine. During the storage, transportation and refueling process of gasoline, it is inevitable to mix in some impurities and water. These impurities are brought into the fuel supply system and engine cylinders with the fuel, which will accelerate the wear of the cylinders. Fuel filter: Ensure the fuel is clean and prevent vapor lock. During the use of the internal combustion engine, mechanical impurities such as dust, metal debris, and carbon deposits will continuously mix into the oil. At the same time, the oxidation of the oil by air and combustion exhaust gas will gradually produce colloids in the oil. The mixture of mechanical impurities and colloids will also form sludge, which will not only accelerate the wear of moving parts but also easily cause oil circuit blockage.