Do I have to replace the filter when I exchange the oil?

The Car repair shop will let the car owners replace the filter, When they are to change the oil, Why? Must to do?

let's to learn the role of oil filter first:

The function of the oil filter is to filter the impurities in the oil flowing in the lubricating system.

After the engine has been running for a period of time, some impurities will be produced.

There are two main types of these impurities:

one is metal scraps worn down by engine parts during operation, and the other is black muddy organic matter produced by chemical changes in the engine oil under high temperature during engine operation.

These impurities will be mixed in the engine oil and will travel with the engine oil in the lubrication system.

The composition of oil filter is:

1. Shell: A container used to hold the filter element to maintain pressure operation, and is required to withstand higher pressure without deformation or damage.

2. Fixed spring: used to press the filter element, and make it fixed and sealed well in the iron tank when it vibrates and the oil is flowing. There are also plate springs.　　

3. Filter medium: used to filter sludge and impurities in engine oil, composed of filter paper and upper and lower end caps　　

4. Center tube: used to support and fix the paper core.　　

5. Inner gasket or check valve: Used to prevent lubricating oil from flowing back to the oil pan when the engine stops working, to ensure that there is lubricating oil in the engine lubrication system for a long time, so that the engine is immediately lubricated when it is started.　　

6. ​​Sealing ring retainer: used to seal the shell, fix the sealing ring, and fix the oil filter on the engine.　　

7. Rubber gasket: The oil filter acts as a seal when installed on the engine and is installed on the gasket seat.　　

The above is the structure and working principle of the genuine oil filter.　　

Must it to replace the filter when changing the oil is better ?

The function of the oil filter is to filter various impurities in the oil to prevent the impurities from causing abrasion to the engine.

If the machine filter is not replaced for a long time, the machine filter will be partially blocked due to dirt, and the pollutants will flow directly into the engine, increasing the wear of the machine parts;

Only replace the engine oil without replacing the engine filter, the contaminated engine oil remaining in the old engine filter will re-enter the oil circulation.

If you do not replace the filter when changing the oil, it means that dirt continues to remain inside the car engine.

Changing the oil is a waste of change and loses its meaning.

Therefore, you must replace the filter when you change the oil. To ensure that the interior of the car engine is kept clean　　

Why do I need to change the oil?　　

Engine oil will lose its original performance after being used for a long time;

for another reason, we need to talk about the work flow of the lubrication system.

The engine oil is usually stored in the oil pan at the lower part of the engine.

When the engine is running, part of the engine power will draw the engine oil up.

Then use the pressure of the pump to send it to lubricate all parts of the engine.

The lubricated oil is turning into oil droplets, falling along the wall back into the oil pan, and then being pumped up to continue to lubricate the components.

After repeated lubrication, worn metal chips and dust will be mixed into the oil, accelerating the wear of the sliding surface.

Therefore, an oil filter needs to be installed on the oil path to filter the oil all the time.

However, if this is the case for a long time, the oil will still become dirty!

Therefore, our car must change the oil after driving a certain mileage.

While the oil is lubricating, it will play a certain cooling role.

In fact, in simple terms, the oil filter can only filter out the metal debris mixed in the oil, and it is useless for the dust inside!

Therefore, we need to change the oil filter regularly, and also need to change the oil according to the maintenance manual!　　

The oil filter is used to remove metal chips and various impurities in the automobile oil, so as to prevent it from entering the lubrication system and wearing parts.

After the oil filter is used for a period of time, a lot of sludge and metal debris will accumulate on the filter element, which will block the filter and hinder the normal operation of the lubrication system.

At this time, the filter element of the automobile oil filter should be replaced.

Do I have to repalce the filter when I change the oil? The answer is yes.