Do I need to change the oil filter when servicing the oil?


Release Time:

Jul 19,2023

Automobile oil maintenance is periodic, and the oil must be changed when the number of kilometers is reached or when the time is reached. So why change the oil filter at the same time as the oil change?

Automobile oil maintenance is periodic, and the oil must be changed when the number of kilometers is reached or when the time is reached. So why change the oil filter at the same time as the oil change?

First of all, what is the role of machine filtration?

Automotive mechanical filters are also called "oil filters". The function of the mechanical filter is to filter the impurities in the oil flowing in the lubrication system. After the engine has been running for a period of time, some impurities will be produced.

These impurities are mainly divided into two categories: one is metal debris worn by engine parts during operation; the other is black muddy organic matter (carbon deposits) produced by chemical changes in engine oil at high temperatures during engine operation. These impurities get mixed into the engine oil and move with the engine oil in the lubrication system.

So, must the oil filter be replaced at the same time as the oil maintenance?

Yes, it must be replaced. If the engine filter is not replaced, about 25% of the contaminants in the old engine filter will re-enter the oil circulation, which will not only increase the chance of engine wear, but also reduce the performance of the new oil. Therefore, when changing the engine oil, the filter must be replaced, which is also beneficial to prolong the service life of the engine.

Since the filter needs to be replaced every maintenance, is it possible not to change the oil?

No, the oil will lose its original performance after being used for a long time. When the oil is lubricated, it acts as a cooling agent. In fact, to put it simply, the oil filter can only filter out the metal debris mixed in the oil, and it is useless to the dust inside! Therefore, we need to change the oil filter regularly, and also need to change the oil according to the maintenance manual!