An All-round Understanding of Auto Oil Filter

1. The role of auto oil filter

Under normal circumstances, the normal operation of various parts in the engine is realized by the lubrication of the engine oil, but the metal chips generated during the operation of the parts, the carbon deposits that are oxidized at high temperatures, and some water vapor will continue to be mixed into the engine oil. For a long time, it will affect the lubricating ability of the oil, and in serious cases, it may even affect the normal operation of the engine.

At this time, the role of the auto oil filter is reflected! As the name implies, the auto oil filter mainly filters most of the impurities in the oil, keeps the oil clean, and protects the engine.

2. The working principle of the auto oil filter

In fact, the working principle of the auto oil filter is not complicated. During the operation of the engine, with the operation of the oil pump, the oil with impurities continuously enters from the oil filter inlet, and then passes through the check valve to the outside of the filter paper and waits for filtering.

Under the action of pressure, the engine oil continuously passes through the filter paper and enters the center pipe, while the impurities in the engine oil remain on the filter paper. The oil that has entered the center pipe enters the engine lubrication system from the oil outlet in the middle of the auto oil filter base plate to participate in the lubrication process.

3. The structure of the spin-on auto oil filter

Spin-on auto oil filter is mainly composed of three parts: bottom plate, filter element, and shell, including core components such as outer sealing ring, check valve disc, filter paper, and bypass valve.

Although what we see from the appearance is only the spin-on auto oil filter as a whole, and the check valve, filter paper, bypass valve and other parts are invisible, the selection of the product largely determines the performance and quality of the product.

Filton Tech (Shanghai) Co., Ltd is extremely harsh on materials: The check valve uses high-standard high-quality rubber materials to ensure its stability and sealing effectiveness when it is opened/closed; The filter paper uses a filter material of the multi-layer gradient structure with high-efficiency capabilities of particle filtering, interception and impurity storage, which can filter and store impurities under severe temperature changes while ensuring sufficient and stable oil pressure. The bypass valve adopts Baosteel Q/BQB series standard metal plates, which can ensure its stability and effectiveness when it is opened/closed, and prevent serious dry wear caused by the engine without the supply of lubricating oil when the filter is blocked or the oil kinematic viscosity is too high, thereby protecting the engine.

4. The comparison of the advantages and disadvantages of auto oil filters

The first trick: look at the appearance

The engine filter produced by a good brand is not only good in materials and workmanship, but also in the appearance details. Only well-known brands are willing to invest money to do the best in appearance details. While for copycat or refurbished products, the appearance details and craft are inferior. Filton Tech (Shanghai) Co., Ltd has a complete production line for the coating of the engine oil filter shell, which includes cleaning, powder spraying, solidification, cooling and other processes, so that the auto oil filter can have better corrosion resistance. Before packaging, screen printing technology is used to make the fonts on the shell clean and beautiful.

The second trick: look at the rubber ring

The sealing rubber ring of the oil inlet and outlet of the engine filter is also one of the references for judging the quality of the engine filter. We can remove the rubber ring, pinch it with our hands, and feel the texture of the rubber ring.

For a good engine filter, the material of rubber ring will be very thick, and it will feel soft when pinched by our hands to ensure the sealing around the oil inlet and outlet; the cheap rubber ring has a hard texture and insufficient elasticity.

The third trick: look at the check valve

Whether it has a check valve or not is also an important basis for judging the quality level of a engine filter. The check valve of auto oil filter made by Filton Tech (Shanghai) Co., Ltd is generally made of materials like NBR or AEM.

The filter check valve is actually a rubber cup, which is a very simple part, but its function is very important: it can block the return of oil to ensure that the oil pressure can be formed in the lubrication system as soon as possible when the engine is cold started so as to avoid dry friction.

The fourth trick: Put your finger into the filter and touch the inner wall of the engine to determine whether it is fixed

For a good engine filter, the filter element will be firmly fixed inside the engine filter, and will not shift when subjected to oil pressure and vehicle bumps, so as to ensure that the oil is filtered through the filter paper. Therefore, from the fixed degree of the filter element, the quality of an engine filter can also be judged.

5. The maintenance cycle of auto oil filter

The auto oil filter belongs to the category of wearing parts. It can be seen in the owner's manual that the warranty period of the oil filter is 6 months after the delivery date or the mileage is less than 10,000 kilometers.

In terms of daily replacement, the oil and the car oil filter are basically synchronized. The recommended replacement cycle is 5000 to 8000 kilometers, 3 to 4 times a year (depending on the actual situation). If we use it for a long time without replacing it, it may cause the loss of the function of the oil filter, and ultimately affect the operation of the engine.

6. Replacement of the auto oil filter

In most cases, the disassembly and assembly of the auto oil filter are carried out during maintenance in a 4S shop, engine oil filter manufacturers or repair shop. The car owner basically does not replace it by himself. Here is just a simple science popularization for everyone.

When replacing the spin-on engine filter, first raise the vehicle through a lift, and then unscrew the oil plug on the oil pan to drain the oil.

After the old oil in the car is drained, use the filter wrench to unscrew the old auto oil filter. When the oil in the car basically no longer leaks out, you can install a new spin-on oil filter.

During installation, the mechanic will apply a layer of oil on the new auto oil filter in order to achieve a better sealing effect.

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An All-round Understanding of Auto Oil Filter

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