What are the three filters in an engine?

[DeJason]

Automotive three filters refer to the air filter, fuel filter, and oil filter. The specific introductions are as follows: 1. Air filter: There are many dust particles suspended in the air, and the main component of these suspended particles is silicon dioxide (Sio2), a substance harder than metal. Installing an air filter can reduce wear on parts such as cylinders, pistons, and piston rings. 2. Oil filter: During the use of an internal combustion engine, mechanical impurities such as dust, metal shavings, and carbon deposits will continuously mix into the oil. At the same time, the oxidation effect of air and combustion exhaust gases on the oil will gradually cause the oil to produce gum. The mixture of mechanical impurities and gum can also form sludge, which not only accelerates the wear of moving parts but also easily causes oil passage blockage. 3. Fuel filter: During the storage, transportation, and refueling process, gasoline is inevitably mixed with some mechanical impurities and water. These impurities enter the fuel supply system and engine cylinders along with the fuel, accelerating cylinder wear.