Types of oil filters
Nowadays it is very common to find several types of the best oil filters . The problem is that as a general rule they are not interchangeable with each other, because each engine equips one or the other depending on the design it has. Therefore, we must be careful when changing oil and filter , so as not to screw in the process.
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The first differentiation that we have to take into account are armored or cartridge oil filters . Key features when doing car maintenance. However, although these are the most common filters in conventional cars, there are many more variants that can be found in heavy vehicles and very high-end models.
According to its disposable parts
Armored or monoblock
First, we have armored filters , which are also called monoblock . They are the most used today in both passenger cars and industrial vehicles. It is a metal filter that is placed directly on the engine by means of a thread arranged for this purpose. The body of the filter and the cartridge form a single set , which is replaced every time we perform the oil change of our car. They are generally used in cars with diesel engines, although they can be found in some gasoline engines.
Cartridge
Second, we have the cartridge oil filters . They have a filter cartridge that is the part that we must replace while changing the oil. The housing as such must be cleaned and replaced as it was, so the method to change this filter differs quite a lot from armored oil filters.
According to your filtering method
By pressure or mechanics
The oil passes through the filter part thanks to the pressure with which the engine and the oil pump move it . They are very frequent in normal cars either be cartridge or armored . To avoid problems when they are clogged by too much dirt, it has the aforementioned stop valve. Upon exceeding a certain pressure, the oil is returned to the circuit to prevent the filter part from breaking or dislodging, allowing all the particles that it trapped to pass before clogging. What would be much more harmful to the engine.
By centrifugation
As the name implies, they use centrifugal force to pass harmful particles through the filter part . These filters are usually cartridge-type since they only require the filter to be replaced when they have accumulated too much dirt. In some models it is also possible to clean the filter and replace it.
By sedimentation
These oil filters are the simplest . They are based on the fact that the particles to be filtered are usually heavier than the oil itself. Therefore, they will tend to deposit by sedimentation in a deposit located at the bottom .
By magnetism
This type of oil filter is not usually used in engines , because it is only responsible for removing metal particles, which come off the friction between parts. For this reason they are often used in parts that do not generate other contaminants such as gearboxes with their own oil.
By pyrolysis
They are not usually used in normal vehicles . They are more typical of industrial machinery. They eliminate the residues that are in suspension in the oil with the increase of temperature . That is, in the same way as furnaces that have pyrolysis to clean their interior.
According to its disposable parts
Armored or monoblock
First, we have armored filters , which are also called monoblock . They are the most used today in both passenger cars and industrial vehicles. It is a metal filter that is placed directly on the engine by means of a thread arranged for this purpose. The body of the filter and the cartridge form a single set , which is replaced every time we perform the oil change of our car. They are generally used in cars with diesel engines, although they can be found in some gasoline engines.
Cartridge
Second, we have the cartridge oil filters . They have a filter cartridge that is the part that we must replace while changing the oil. The housing as such must be cleaned and replaced as it was, so the method to change this filter differs quite a lot from armored oil filters.
According to your filtering method
By pressure or mechanics
The oil passes through the filter part thanks to the pressure with which the engine and the oil pump move it . They are very frequent in normal cars either be cartridge or armored . To avoid problems when they are clogged by too much dirt, it has the aforementioned stop valve. Upon exceeding a certain pressure, the oil is returned to the circuit to prevent the filter part from breaking or dislodging, allowing all the particles that it trapped to pass before clogging. What would be much more harmful to the engine.
By centrifugation
As the name implies, they use centrifugal force to pass harmful particles through the filter part . These filters are usually cartridge-type since they only require the filter to be replaced when they have accumulated too much dirt. In some models it is also possible to clean the filter and replace it.
By sedimentation
These oil filters are the simplest . They are based on the fact that the particles to be filtered are usually heavier than the oil itself. Therefore, they will tend to deposit by sedimentation in a deposit located at the bottom .
By magnetism
This type of oil filter is not usually used in engines , because it is only responsible for removing metal particles, which come off the friction between parts. For this reason they are often used in parts that do not generate other contaminants such as gearboxes with their own oil.
By pyrolysis
They are not usually used in normal vehicles . They are more typical of industrial machinery. They eliminate the residues that are in suspension in the oil with the increase of temperature . That is, in the same way as furnaces that have pyrolysis to clean their interior.
According to the material of the filter element
Of paper
They are the most ecological, although that does not mean that they do not have to be taken to a clean point , because of the large amount of toxic waste they have once used. It is a paper with a certain level of porosity, pressed and folded in the form of an accordion .
Synthetic
It is assumed that filters made with a synthetic filter element are capable of filtering harmful particles of smaller size because their pores are somewhat narrower. This material can also last longer without degrading . Which does not mean that it takes longer to get clogged by waste.
With microcrystals
Oil filters with a filter element made of microcrystals are capable of removing much smaller particles . They are used in high-end engines , which because of their price can and should carry much higher quality components. With them the oil lasts in good condition for longer.
Of paper
They are the most ecological, although that does not mean that they do not have to be taken to a clean point , because of the large amount of toxic waste they have once used. It is a paper with a certain level of porosity, pressed and folded in the form of an accordion .
Synthetic
It is assumed that filters made with a synthetic filter element are capable of filtering harmful particles of smaller size because their pores are somewhat narrower. This material can also last longer without degrading . Which does not mean that it takes longer to get clogged by waste.
With microcrystals
Oil filters with a filter element made of microcrystals are capable of removing much smaller particles . They are used in high-end engines , which because of their price can and should carry much higher quality components. With them the oil lasts in good condition for longer.