Normally when replacing oil, it needs to replace oil filter simultaneously

After the Paper filter element used after a long time, the filtration efficiency will be reduced and the pressure that through the oil filter will also be reduced.

Although when the oil pressure reduced to a certain extent, flood valve will open, but without the filtration of the oil, the impurities will come to the oil path and increase the wearing of the big machine. If only replace the oil, but not the oil filters, the pollutants of the old filter will come to the oil again and recycle, it not only will increase the possibility of wearing, but also will decrease the usage performance of the new oil.

 How to distinguish the real and fake oil filter ?

1. Distinguish the real and fake filter through its appearance

 Good quality filter: emblem mark and printing clear, painting quality good; sealing material of the gasket is good, rubber upright. Oil filter component heavy, thread process precise

 Bad quality filter: emblem mark and printing is not clear, painting surface is of poor quality; the sealing material f the gasket is bad, which is easily to cause the leakage of the oil and even cause fire. The component is relatively light and there is obvious turning trace

2.  Observe the filter paper carefully

Good quality filter:  filter paper is specially developed according to the oil that used, density moderate and it can ensure the filtration performance

Bad quality filter:  the filter paper is not appropriate, density low, which cannot filtrate the impurities in the oil

3.  Flood valve 

Good quality filter:  flood valve inside, when the filter is blocked, it can still guarantee enough oil supply

Bad quality filter:  no flood valve inside, once the filter is blocked, the engine cannot get enough oil to lubricates.