What are the three filters?
3 Answers
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.
I often drive to and from work, so I pay special attention to the three filters in cars. The three filters are the air filter, oil filter, and fuel filter. The air filter is mainly responsible for filtering dust and impurities in the air drawn into the engine. If it's not replaced properly, the engine can easily accumulate carbon deposits, affecting power output. The oil filter is used to filter out metal particles and impurities in the engine oil, protecting the internal components of the engine and extending its lifespan. The fuel filter primarily filters water and impurities in the gasoline, ensuring the fuel system operates normally and preventing clogging of the fuel injectors. I think it's important to regularly check these three filters, replacing them every 5,000 to 10,000 kilometers. This keeps the car running smoothly and can also save some fuel costs. If you neglect these, the car might become sluggish, and small issues can accumulate, increasing repair expenses. I make it a habit to have the mechanic check them during every maintenance service, ensuring both driving safety and cost-efficiency.
When it comes to the three filters, based on my over 20 years of driving experience, the key points are: the air filter, oil filter, and fuel filter. The air filter prevents dust from entering the engine. When it gets dirty, the car struggles to 'breathe,' leading to reduced power. The oil filter cleans impurities from the engine oil. If it's clogged, engine wear accelerates, affecting lubrication. The fuel filter removes impurities from the gasoline, protecting the fuel pump and injectors. I recommend replacing them every 8,000 kilometers; otherwise, fuel consumption will increase, and in severe cases, the car may not start. Don’t forget, you can also perform simple checks yourself: open the hood to see if the filters are dirty. Keeping these three components clean can extend your car’s lifespan and save you from costly repairs—a win-win situation.
