Oil Filter vs. Fuel Filter: Differences, Functions, and Key Buying Tips

What is the physical difference between an oil filter and a fuel filter?
Can you use an oil filters as a fuel filters?

Of course not. These are two kinds of filters, and the their functions are different.
What is Oil Filter?
1.Definition
Oil filter, also known as oil grid. Used to remove impurities such as dust, metal particles, carbon deposits and soot particles in the engine oil to protect the engine.

Summary
When the engine is working, metal wear debris, dust, carbon deposits oxidized at high temperatures, colloidal deposits, and water are constantly mixed into the lubricant. The function of the oil filter is to filter out these mechanical impurities and gums, to keep the lubricating oil clean and extend its service life. The oil filter should have strong filtering capacity, low flow resistance, and long service life. Generally, several filters with different filtering capacities are installed in the lubrication system-filter collector, coarse filter and fine filter, which are connected in parallel or in series in the main oil passage respectively. (The one connected in series with the main oil passage is called a full-flow filter. When the engine is working, all lubricating oil is filtered by the filter; the one connected in parallel is called a split-flow filter). Among them, the coarse filter one is connected in series in the main oil passage, which is a full flow type; the fine filter is connected in parallel in the main oil passage, which is a split flow type. Generally, only a filter and a full-flow oil filter are installed on modern car engines. The coarse filter filters out impurities with a particle size of 0.05mm or more in the oil, and the fine filter is used to filter out fine impurities with a particle size of 0.001mm or more.
2.Specifications
a) Why should we notice?
In fact, there are too many types of oil filter elements. Because each model is different, the type of oil filter element is also different. There are oil filter elements for screw air compressors, WK962/7, WK940/20, and there are many, because If the car model is different, even if it is a little bit too close, you can’t put it in. Not only the organic oil filter element but also the fuel filter element are changed according to people’s needs. PL421, PL420 with cable. This is also the model of the oil filter element. There are many models. Many, you still need to look at your own model.
b) What should we pay attention to when buying oil filter?
First of all, when we buy, we must first ask if it is the original manufacturer. Because the original factory is better to use than the non-original factory, the focus is on the less damage to the car, but the original factory's price will be a little more expensive than the non-original factory. We still need to look at our own economic conditions, if we can The editor still recommends buying the original factory, after all, we all hope that our car has a longer lifespan. Also, we have to see whether it is brand new, because some unethical manufacturers will install it in the car, so it is better for the car owner to stand by the side when replacing it, although this is not the case. But still need to pay attention to avoid this situation.
c) How to determine the oil filter specification?
If the car maintenance manual is still there, just check the contents of the maintenance manual, it will be mentioned in it. If the maintenance manual is gone, choose it carefully. Different models have corresponding machine filter models. If you make a mistake, you will not be able to install it smoothly. The machine filter you bought may be wasted, unless the place where you bought it allows return.
3. Compose
A qualified oil filter element is composed of a shell, threaded accessories, check valve, sealing ring, filter element, pressure spring, bypass valve, etc.
4. The filter materials
The filter materials used in the oil grid include filter paper, felt, metal mesh, non-woven fabric, etc.
Oil filter classification/Types

• Replaceable type, spin-on type, and centrifugal type.
• Full flow type and split flow type.
• The microporous filter paper filter element
• Mechanical
• Magnetic
• High efficiency (HE)

What does a Oil Filter Do?

Generally speaking, the oil filter element is the oil filter. The main function is to filter the debris and moisture in the oil, and transport the cleaned oil to the parts that need lubrication. This is the function of the oil filter element. Both large and small vehicles need an oil filter element. Only with an oil filter element can the oil entering the parts that need lubrication be free of impurities. Simply put, the main function of the oil filter is to filter most of the impurities in the oil, keep the standby oil clean, and extend its normal service life.
In addition, the oil filter should also have the performance of strong filtering capacity, low flow resistance, and long service life.
On the other hand, it can effectively reduce friction and wear, and at the same time transfer the heat generated by combustion and friction to the cooling circuit, and prevent oil Deteriorate and reduce engine wear.
What is fuel filter?

1.Definition
A fuel filter in a bus is a simple device designed to remove various contaminants from the fuel system. It is essential to prevent the rust particles, moisture and debris in the fuel and to ensure the precision parts of the fuel system from wear and other damage.
In general, a fuel filter can be a metal or plastic with a filtration element. Fuel at first from the gas tank enter the fuel filter and then comes out to be clean, so as to be ready to be used in the modern combustion engine.
With the development of the internal combustion engines, fuel filters are also designed differently. The early filters were small plastic can, because there was no need for an high-strength device as fuel passed through the filter under low pressure. Nowadays, due to the introduction of the direct-injected engines, fuel filters are designed more stronger to withstand the the high pressure levels in the fuel system. The industry use better materials to manufacture the outside shell and the more robust filtration media. The whole filter can shield from the situation of excessive pressure by special relief valves.


Construction- How doe fuel filter work?

Fuel is sent from the tank to the engine by suction generated by the feed pump. The fuel pump is located in this circuit. The fuel passes through the inlet of the filter, into the filter case, and then through the filter medium, in which foreign matter is removed.
Hope it helps you.