Recently, one can increasingly hear claims that modern oil filters "do not actually filter anything." They say that the existing filters are fine filters, which now simultaneously perform the function of a coarse filter, which used to be in the car separately and worked all the time.
Now, the bypass valve, designed to prevent oil starvation during start-up and high oil pressure, under certain conditions allows unfiltered oil into the engine, which is why the overhaul time is critically approaching. Let's see if this is the case.
Indeed, today a car engine with a maximum pressure of 6–10 bar does not have a coarse filter, and the fine filter has a bypass valve that opens at pressures up to 2 bar, depending on the model. When the valve opens, the oil is not filtered. When does the bypass valve open?
Firstly, the bypass valve opens when the engine is started cold, until the engine has warmed up, the bypass valve remains open from 5 to 30 minutes, depending on the ambient temperature, oil viscosity and the design of the filter itself - the tighter the bypass valve spring, the faster it closes . Secondly, the valve opens with a sharp increase in pressure in the lubrication system, for example, when overtaking, starting a warm engine. And of course - it opens and remains open most of the time or constantly open during engine operation when the filter curtain is clogged.
From this we can conclude that modern filters do not perform their function, and such a system significantly brings the engine overhaul closer? Of course not! The propagators of such conjectures deliberately forget about one fact, namely, that the engine lubrication system is closed. From the outside, almost nothing gets into it. The task of the oil filter is to eliminate carbon particles, microscopic metal "shavings", etc.
It cannot be said that if the bypass valve is open, then "particles of any size enter the engine." They don't get into it, they just don't leave it. During some time. It's unpleasant, but better than oil starvation. When the viscosity of the oil decreases during warm-up, and the movement is carried out in the normal, calculated mode for this vehicle, the bypass valve will close and catch the contaminants.
Let's count a little. The entire volume of oil passes through the filter in about a minute. More precisely, the entire nominal volume of the filled oil, that is, some particles pass two or three times during this time, while others never. Most of the oil, which can be considered almost the full real volume, passes through the filter in 5-10 minutes. Just at this time, the bypass valve should open. If more, either the spring is weak, or the oil is wrong, or the filter is already dirty, but no one except the car owner who bought low-quality products or does not comply with the replacement regulations, taking into account operating conditions, is not to blame.
That is, opening the bypass valve will lead to the fact that the particle formed (or separated from the crankcase wall or other part of the engine) will reach the filter element a maximum of 15 minutes later, that is, on average, 7 minutes. This will happen throughout the entire life of the engine, that is, on average for all particles, then if there were no filter, each would remain in the volume of working oil on average for half the engine life.
A mileage of 250 thousand km at an average speed of 50 km / h (which in the reality of urban traffic jams is more ideal than a real figure) - 5,000 hours, or 300,000 minutes, i.e. half of the motor resource - 150,000 minutes. Then 7, or okay - 10 or even 30 minutes of opening the bypass valve - is still less than a fifth of a percent of the time that the particle could harm the engine if there were no filter at all. Now tell me - because of the 0.002% reduction in engine life, is it worth raising such a storm around the bypass valve?
Conclusion:
The presence of an oil filter bypass valve allows you to avoid oil starvation of the engine at maximum speed and when starting the engine. At the same time, the filtration efficiency, subject to the correct operation of the bypass valve and the timely replacement of the filter, decreases by a negligible value within thousandths of a percent.
The oil filter is one of the most sought after items in auto parts stores. Every year the number of brands of oil filters on the shelves of our car dealerships only increases. Consumers, as well as sellers, naturally have questions: “Is there any difference between them, or is it only the inscriptions on the case and packaging that differ”? Portal "About Autobusiness" conducted an investigation and provides you with an answer to this question.
The purpose of our work is not to test the filtering abilities of each model and their resource. This is only an attempt to analyze the design of oil filters based on generally accepted knowledge and concepts, taking into account the latest trends in the field of oil filter production. As for the selected assortment, within the framework of this project, we purchased one model of an oil filter for a Toyota engine of the most common brands on the Siberian market. The original filter number is 90915-10000003. When buying filters were selected from a variety of price categories. Thus, both the most expensive products on the market and the most affordable ones “participated” in this project. This is very important for the purposes of our study, since it makes it possible to answer the question: “Are there, in principle, constructive differences between premium filters and economy class filters”? Oil filters of the following brands became participants of our test: Mann Filter (Germany), TopFills (Korea), BIG (Korea), RB-Exide (Korea), Lynx (Korea), Champion (European Union), VIC (Japan), Sakura (Korea) ), Micro (Japan), Union (Japan), Toyota Genuine Parts (original filters).
Each filter is rated
on several parameters:
1 package
2) filter housing
3) filter design
element
4) spring design
5) anti-drain valve
6) filter cover
7) filter sealing ring.
Package
Perhaps this point of the study is not so interesting for the end consumer, since we can evaluate the filter packaging only by one indicator - namely, compliance or non-compliance with the requirements of Russian legislation. This stage of our work will be interesting for car service representatives and especially for filter sellers. The fact is that if a company sells goods whose packaging does not meet Russian GOST standards, this may cause the application of various sanctions by regulatory authorities - from fines to the requirement to remove the goods from sale.
The requirements of Russian legislation are generally quite simple. The packaging in Russian should contain information about the applicability of the product, the name of the manufacturer, the address of the company.
The packaging of such filters as TopFills, BIG, RB-Exide, Lynx, Sakura fully comply with the requirements of GOST. As we can see, the South Korean filter manufacturers showed amazing unanimity in their deference to the Russian trade legislation and placed the most complete information in Russian on their packages.
European manufacturers Champi-on and Mann were less attentive. The packaging of these filters contains almost all the necessary information.
Japanese filter manufacturers Union, VIC, Micro, Toyota Genuine Parts distinguished themselves by complete nihilism in this matter. We could not find the necessary information in Russian on any of the packages!
Another point is important. Pay attention to how some manufacturers indicate the country of manufacture of the filter. In most cases, the exact country of production is indicated: Made in Korea, Made in Japan. But on the packaging of filters Sakura, Topfills, Champion, we were unable to find accurate information regarding the country of production.
Filter housing
This part of the filter, one might say, is not the most responsible for its performance. It is possible to compare various models of iron filter housings by only two indicators: the rigidity of the housing and the quality of the internal surface treatment. According to the first indicator, all participants in our study are almost equal, with the exception of the Sakura filter housing. He was the softest of all. A natural question arises whether this difference can significantly affect the performance of the filter. Under normal operating conditions, no, but if an increase in pressure occurs in the oil system or a stone gets into the filter from the outside, then a softer body can do a disservice. For example, high pressure in the oil system (which often occurs in winter when starting a cold engine with thick oil) can lead to a rupture of the filter housing. However, it must be admitted that the probability of such an emergency is not so high. The treatment of the inner surface with an anti-corrosion compound does not cause any comments from any of the participants. According to this indicator, only the Mann filter differs, in which the inner surface of the body, in addition to the main anti-corrosion composition, is also coated with an additional anti-galvanic composition.
filter element
The filter element is the main part of the filter responsible for the quality of its work. The filter element should be evaluated according to several parameters: the quality and quantity of the filter element, the valve system (bypass valve), as well as the quality of the filter paper laying. As part of our analysis, we, unfortunately, will not be able to evaluate the quality of the filter paper. Such a test requires special tests in a certified laboratory. It is important to note that neither the color, nor the structure of its surface (texture), nor the thickness in any way speaks about its quality. Therefore, the fact that some manufacturers use smooth and thin pink filter paper in their filters does not mean at all that such a filter will purify oil better or worse than a filter with very dense and fluffy gray paper.
Let's consider other design features of filter elements. First of all, the filter element of the original filter is striking. As you can see, a completely different design of the filter element is used here. It is not made of paper, but of a special sponge material. Note that this filter was purchased in Japan, from an authorized Toyota dealer, and there is no doubt about its authenticity. Accordingly, we can conclude that it was precisely this design that Toyota experts, after conducting their own tests, considered more effective. All other filters use paper. One of the indirect factors in the quality of the filter element is the volume of the filter paper. But this is only if we are talking about paper with the same density. If we compare filters that use different paper structures, then their area may differ, and the filtration quality may be identical. If we turn over all the filter elements and put them in a row, we will see in which of them the area will be larger - in those that are larger in size. The diameter of the filter element is the same for all manufacturers, but the height is slightly different. VIC, Union, Micro have the highest filter elements. Averages for this indicator: Champion, Mann, Lynx, TopFills. In filters BIG, RB-exide, Sakura - the lowest filter elements. This is due to the design of the spring, which presses the filter element.
The paper binding methods are also different. Some manufacturers use a metal bracket, others use conventional gluing. A metal bracket is considered a more reliable connection. When using this bonding method, the probability of paper rupture at elevated pressure in the oil system is zero. Of the filters presented here, the connection of the edges of the paper with a metal clip is used by Union, TopFills, Mann.
It is also worth noting that the quality of paper laying by almost all manufacturers is good. The exception is the TopFills filter, where the paper is stacked rather carelessly, which may indicate a low level of production.
bypass valve
What this valve is for, everyone probably already knows, but we still remind you. During a cold start, when the oil is very thick and cannot pass through the filter paper, the bypass valve opens and oil begins to flow into the engine, bypassing the filter. The same thing happens when the oil filter is critically clogged. This eliminates engine oil starvation, which is much more harmful than running for a minute on contaminated oil. It is worth noting that filters were found on the market, in the design of which there is no bypass valve at all. As a rule, these are fairly cheap oil filters made in Southeast Asia. There are also exceptions. For example, in one of the stores in Vladivostok, we came across a Toyota filter in its original packaging, in which there was no bypass valve. Judging by the barcode, the filter was produced in one of the countries of Southeast Asia. In the summer, such a filter will still work, but in winter, oil starvation is possible. The most interesting thing is that the filter was sold in Russia at a price of 330 rubles! You can detect the absence of a bypass valve by looking inside the filter.
The design of the bypass valve is identical for almost all filter manufacturers. Only the original filter and Sakura stand out. The original filter uses a flat coiled spring, while the Sakura has a spring-loaded part on the outside of the filter. When you press the valve, the valve constantly warps. There is a danger that after a series of operations, such a valve will completely warp and the filter will constantly etch dirty oil into the engine.
For all other filters, the valves are similar, only the material from which the valve is made and the stiffness of the spring differ. It is worth noting that many manufacturers have recently abandoned the use of metal valves, since there is a possibility that in severe frost such a valve may freeze to the filter element housing and not work at the most necessary moment. Metal valves are used by Japanese manufacturers VIC, Union, Micro.
Spring
There is not much to say about this part of the filter. We only note that recently many market leaders have switched to completing their filters with leaf springs. The coil spring takes up too much space in the filter housing. In addition, when using a high coil spring, there is a possibility of its displacement inside the filter and distortion of the filter element. However, there are reputable manufacturers that produce filters with coil springs, in particular Union and Micro. The spring has a small height and is made of high quality stainless steel. And yet, a flat spring is considered more modern.
Anti-drain valve
Structurally, this valve is a small rubber ring with wide edges that close the holes in the filter cup and prevent oil from flowing out of the filter after a pressure drop in the system. The rubber must be highly elastic, oil-resistant and withstand high temperatures. As part of our analysis, we can only evaluate the elasticity of the gum and the quality of the fit of the gum to the cup. For these two parameters, we liked the Mann filter the most, in which the valve is made of silicone. This material retains its original properties over time and under the influence of all negative factors. Therefore, you can be sure that the anti-drain valve will work for the entire life of the filter. The anti-drainage valve of the BIG filter left an unpleasant impression - the rubber band itself is quite hard, and its edges have irregularities through which oil can flow out of the filter. That is, after a long stop in such a filter, there may not be any oil left at all. The TopFills filter also has gaps between the rubber band and the cover, but for a different reason. The edges of the rubber band of this filter lie directly on the welding points of the filter cover to the body; because of this, small gaps appear between the rubber band and the case. Another unpleasant moment was found in the Sakura filter - no matter how hard we pressed on the rubber, it was not possible to achieve a full fit, that is, oil from this filter can also flow freely. For all other manufacturers, the anti-drainage valve does not cause any special comments.
filter cover
All manufacturers have the same caps, except for the Mann filter and the original filter. All manufacturers use welding. The Mann Filter and the original filters use a roll-up design, which eliminates the welding points on the back of the cap, which, as we already know, can compromise the tightness of the anti-drain valve. In addition, the Mann filter housing has special edges at the point of attachment to the filter cover. This is done on purpose - in order to eliminate the danger of turning the filter housing around the filter when winding the filter with great effort.
Sealing ring
Among specialists, one can often hear disputes as to which gum company is preferable. Someone stands up for round elastic bands, others for rectangular ones. In practice, there is no difference. The main thing is that the material from which it is made is sufficiently elastic. Despite the fact that many manufacturers have a very low and thin gasket, we will not draw conclusions from this about the quality of the fit of the filter to the engine block.
Conclusions:
In most cases, more expensive oil filters are different from cheaper counterparts: these filters use a more successful, more modern design. By the way these filters are made, one can judge the high production culture at manufacturing enterprises. If in the premium class filter segment there are practically no obvious “failures” in the design, then in the economy class filter segment there are several examples of careless execution, which can affect the quality of oil filtration.
Oil filter, in English it sounds like an oil filter - it cleans the engine oil from impurities that get there during the circulation process. It can undoubtedly be called one of the key elements of the lubrication system of any internal combustion engine. The oil filter is located at the bottom of the engine.
Types of oil filters
At the moment, in the automotive industry are common:
- full-flow
- partially flow
- combined filters
Full flow filters have the simplest design and immediately pass through the filter block all the oil coming from the oil pump, which is then supplied to all engine lubrication points. The oil filter works on the basis of a bypass valve that regulates the pressure in the lubrication system. If the oil pressure of the oil exceeds the allowable value, it is reduced by the filter bypass valve. This is a certain disadvantage of this design, since when the filter is clogged, the oil flow slows down, the internal pressure rises, the bypass valve opens and passes contaminated oil into the system. The bypass valve, on the one hand, prevents immediate engine damage due to the termination of its lubrication, and on the other hand, it allows dirty oil to circulate, which is why the condition of the filter must be monitored very carefully.
Partial flow The engine oil filter cleans the oil longer than a full-flow one. In systems where it is used, the oil is purified gradually, circulating in two circuits at once: direct - from the pump to the friction zones, and cleaning - from the pump, through the filter and to the friction zones. In the process of circulation, oils from different circuits are mixed, which ensures the cleaning of the engine lubrication as a whole. Such systems are able to maintain the oil in good condition for a long period. Their significant advantage is that even with a clogged filter and broken valves, the oil flow will not stop and the engine will work.
Combined systems are created using technologies of both previous types. Here, the oil filter device guarantees the maximum quality of oil filtration and the longest period of its use.
Oil filter design
Almost every modern oil filter is not collapsible. However, quite a lot of cars (German, American) have a collapsible oil filter, which makes it possible to replace the filter element. The main advantage of such a filter is the ability to replace only the filter element, and not the entire assembly, which significantly reduces the cost of car maintenance.
Oil filter device.
Inside the body of the device is a filter element and a pair of valves. One of them is anti-drainage, designed to eliminate the reverse flow of oil. The other is a bypass valve that keeps the engine oil flowing even if the filter is clogged and the anti-drain valve is broken. The bypass clan also works when using oil with excessive viscosity, which is characterized by difficult filtration.
The bypass valve keeps the engine oil circulating even if the filter fails. The task of the anti-drainage valve is not to release oil from the filter when the engine is turned off, so that its circulation and lubrication of the motor begin simultaneously with its start.
The principle of operation of the oil filter
Common oil filter failures
Deterioration of engine performance, black exhaust when gassed, a drop or increase in oil pressure, the ignition of the corresponding lamp on the control panel - all these may be signs of a malfunctioning oil filter.
In addition to clogging the filter element, the problem may be related to the loss of elasticity of the anti-drain valve. This manifests itself in the periodic short-term inclusion of the controller on the dashboard, most often immediately after starting the engine. This is due to the fact that during parking with the engine turned off, oil flows out of the filter housing, and at startup it starts to work without proper lubrication.
Changing the oil filter is mandatory during an oil change. For this line, he manages to get very clogged.
Solving the problem is simple: you need replace oil filter or a filter element if it is a collapsible model. Suspecting the filter is not working properly, it is impossible to delay the elimination of the problem, because any deterioration in the quality of engine lubrication is its accelerated wear, which is fraught with much more serious malfunctions and major repairs.
Replacement frequency
No oil filter has an outstanding durability.
Exceeding the service life threatens to violate the intensity and quality of cleaning. The oil is not cleaned and remains dirty, which accelerates the wear of engine parts.
Related terms
The oil filter is the most important device, the absence or clogging of which threatens premature internal combustion. Not a single modern car can do without this spare part. Let's look at what it consists of and what function it performs.
Engine oil cleaning process
Every motorist knows that engine oil is a lubricant that ensures smooth operation. Also, this liquid cools all engine parts, cleaning them of small specks and dust that can cause considerable harm to the motor, up to what is required. Therefore, in order for all components to engines worked smoothly, special oil filters are used.
Function
Their main purpose is to effectively clean engine oil from foreign objects such as soot, dust, and so on. Modern oil filters perform a similar function, but differ somewhat in their design and degree of purification. These characteristics are often reflected in the price - sometimes the difference is several times. And before you buy, for example, a VAZ oil filter, you should know its design and principle of operation. It is not out of place to ask what qualities he should have.
What are oil filters made of?
This spare part consists of a valve system, the filter element itself and, of course, a housing in which all these parts are located. Its design resembles a glass with a large hole in it. Through it passes the path of purification of the oil.
Principle of operation
Despite their simple design, oil filters have a rather complex principle of operation, consisting of several stages:
- Engine oil passes through the filter element and then returns to
- The bypass valve allows liquid to bypass the filter element when the filter is excessively dirty. The car starts to move poorly, and this is a reminder to change the filter.
- prevents leakage of engine oil from the reservoir when the engine is turned off. This is a very important point, since if this mechanism malfunctions, there is a risk of oil leakage from the piston group. In this case, the effect of dry friction of the pistons occurs. After 3-4 seconds of such engine operation, it simply stops, as almost all of its components are damaged. This is a very serious breakdown, sometimes even a major overhaul is not able to resume the operation of the motor.
To date, all global manufacturers produce oil filters of the following types:
About replacement resource
At the moment, many companies use modern production technologies using the latest materials. High-quality filters withstand an operating life of approximately 35-50 thousand kilometers. Defective or counterfeit goods serve no more than 5-10 thousand km.
A modern engine requires special attention to the quality of lubricants. New oil formulas increase its life, but sometimes motorists get the impression that all problems are solved by choosing an oil. Even with perfect engine oil, you need an efficient and reliable oil filter.
Almost all modern passenger car engines use a standard full-flow version of the filter element.. The device consists of the following parts:
- oil filter housing with spring;
- filter cartridge with check valve;
- oil filter cap with threaded sleeve and built-in bypass valve;
- rubber ring - gasket sealing the filter installation site;
When it comes to the question - which oil filter is better - we always try to follow the recommendations of friends, less often experts, or we buy the same one that was on the engine when buying a car. The approach is correct, but it is still better to have knowledge of the operation of such an important device and understand which oil filter is suitable for your car.
Important! When choosing the most suitable oil filter option, it is worth considering the characteristics of the engine oil: the presence of detergent additives and the thickness of the oil film. With their high performance, not every filter element is able to effectively screen out dissolved oil varnish or bituminous formations.
The oil filter element has turned from a simple bag of paper or felt into a serious product, the successful operation of which determines how quickly expensive engine oil turns into a dirty liquid diluted with antifreeze and gasoline. As an example, we can cite the results of the degradation of engine oil for ZMZ-402.10 engines as part of GAZ-3110 vehicles, shown in Table 1.
The device of a full-flow oil filter of almost all leading manufacturers is approximately the same, with minor modifications in the design of the mechanical seal and the design of the bypass valve.
Partially flowing oil filter systems are rarely used in passenger vehicles; in forced sports engines, combined options are used. The advantage of such devices is the selection of microparticles from the oil flow by an order of magnitude smaller than in a full-flow design. But such systems operate at a higher oil pressure, which ensures the required quality. The subtleties of screening oil filters:
- full-flow circuit should not exceed 80-100 microns;
- partially flowing - 15 microns.
- combined - did not exceed 40 microns.
Previously, a collapsible device with a replaceable element was widely used. In this case, the body and cover of the device with a bypass valve were made by one unit in the engine crankcase, only the filter element and the seal ring were to be replaced. Thus, the cost of consumables was less, and it was easier to control the operation of the device.
Functions and device of the filter element
The main material used for oil filtration is a special multi-layer cellulose material that resembles paper. In its composition, in addition to modified cotton and cellulose fibers, glass fibers are pressed in, playing the role of a reinforcing lattice. The core of the material is reinforced with a special polymer. Such paper is folded in a special way, which increases the filtration surface, into a single cartridge. Special perforated plates made of plastic or metal are glued to the end surfaces of the device, which help to properly distribute oil flows.
In addition to paper options, a polymer microsponge is used, resembling foam rubber. Unlike paper, the filtration surface of such a device is much higher and is capable of retaining a very wide range of particles and compounds. I must say that such filter elements work perfectly under conditions of regular engine flushing with a timely oil change. A “running” engine with a dirty lubrication system will quickly clog the sponge with dirt and varnish deposits. Further, the device will operate with an open bypass valve with minimal cleaning of the lubricant, which will reduce the life of the motor.
Why does an oil filter need two valves
The oil valve device is designed for normal operation in all climatic zones, including in heat and frost. In the latter case, the oil becomes very thick and viscous under the influence of low temperatures. Accordingly, the resulting high pressure inside the oil filter can destroy the paper elements. The oil filter bypass valve directs the flow of lubricant around the filter surface until the oil warms up and reaches the desired viscosity.
In addition to the bypass valve, the device uses an anti-drainage or check valve, which is no less important for the normal start of the motor. The valve device is a rubber petal in the filter cover.
In some American-made devices, there are systems with a spring-loaded oil valve.
After the engine is turned off, the residual pressure presses the tab against the outlet and prevents some of the oil from draining into the sump. What does it give? Even after a long period of time, at least 150 ml of lubricant will remain in the oil circulation system. At the moment of unwinding and starting the engine, when the standard oil pump system did not develop the required pressure, the oil residue will provide the necessary lubrication of the friction surfaces.
Important! Often, at this moment, a sensor is triggered - an indicator on the dashboard, showing the lack of lubrication pressure in the system. During normal operation, after 2-3 seconds. indicator goes out.
The operation of the engine is accompanied by significant wear of metal surfaces, especially heavily loaded camshafts of cast-iron liners and the bearing surface of the crankshaft. The smallest metal dust is washed out by the lubricant and can circulate in the lubrication system, clogging the channels.
In some cases, manufacturers produce oil filters with magnets that can more effectively collect chips and dust of ferrous metals in the filter element. One of these oil filters is the Samara Salute.
How efficiently such a device works depends on the individual characteristics of the motor. But it is worth noting that in most foreign cars, alloy steels and alloys that do not respond to a magnetic field are used in the engine design.
Replacing the oil filter element
In most engines, the oil filter is located rather inconveniently in terms of maintenance, and you have to work from the inspection hole when changing the device. For greater certainty, the question of where the oil filter is located is better to be clarified in the car's instruction manual.
Often the filter housing sticks to the mounting flange, and you have to make a lot of effort to unscrew the round body. To unscrew, you can use a homemade or proprietary key for the oil filter.
Advice! If the proposed methods do not work, you can unscrew the filter by punching a couple of holes in its body with a sharp screwdriver. The location for the holes should be chosen so as not to damage the central fitting.
Replacing the device is quite simple. The manual usually advises filling the new filter ¾ with engine oil and by hand, without the use of keys or tools, screw it onto the mounting flange. The twisting force is quite easy to control visually. From the moment the gasket of the oil filter housing touches the flange, tighten it another 4 / 5 turns. When installing the device, pay attention to the quality and condition of the gasket itself, the tightness of the body fit depends on this.
Advice! Do not reuse the old rubber gasket. Old hot oil with additives of gasoline and antifreeze leads to hidden destruction of the oil filter gasket material. Even in the absence of external damage, serious oil leaks in the device are possible.
How to choose a quality oil filter
The most difficult and serious issue in using an oil filter is its choice.
Among the most popular filter models, we can mention the Swiss Finwhale LF101 filters used on VAZ, GAZ, KIA and Hyndai, Renault and Chevrolet cars, suitable for all the most popular cars in Russia. The recommended resource is 15 thousand km.
Among the products of European manufacturers, the good quality of MAHLE OC 235 from the Austrian MAHL GRUPPE can be noted. The material of the filter element is designed to work with synthetics and semi-synthetics. The price, like the first one, does not exceed 220 rubles.
Among domestic products, we note the products of Samara manufacturers, designed for VAZ cars:
- oil filter 2112-VAZ Salute at a price of 150 rubles, interesting for a high level of production;
- oil filter basalt BM 1208, in which the anti-drainage and bypass valves are located in parallel, the cost of the model is not more than 140 rubles.
For Japanese cars, we can recommend reliable and high-quality filters - products of German manufacturers MANN W914/2 and Japanese NITTO 4TP-121.
The main question in choosing an oil filter is not to buy a fake. The more popular the product, the more often and more actively it is counterfeited. It is difficult to determine a fake, but if you have knowledge about the features of individual brands of oil filters or the specifics of the production of companies, this is a very real thing. Issues counterfeit products quality printing on the oil filter housing, the presence of micro burrs, poor quality packaging. Very often, information about the manufacturer contains conflicting information, or completely illiterate spelling of words, incorrect information about filter models. One interesting way to detect fakes is to determine the weight of a new device. According to experts, a fake is always lighter than the original part, and the difference can reach 15-20%.
In the video, an overview of oil filters for VAZ cars:
