How is the oil filter different from true and false?
However, most of the false oil filter built-in bypass valve is not obvious, so when the filter paper fails, the oil can not be timely delivery, will lead to some parts of the engine dry friction.
The bypass valve acts as a device for emergency delivery of oil when the filter paper is blocked due to excessive impurities.
Fake oil filter filtration capacity is relatively poor, which is mainly reflected in the filter paper, filter paper too close normal circulation and influence of oil filter paper; too loose will cause a lot of impurity of unfiltered continue with the oil flow, a long time will lead to internal parts of engines for dry friction or excessive wear.
The false oil filter is rough printed on the surface of the shell, and the font is usually blurred. Really oil filter surface of the standard font is very clear, and the paint on the surface texture is very good. Careful friends, by contrast, are more likely to see the difference.
