oil filter

oil filter

This is a question: how often should you change the oil filter? If you have ever wondered what is in that small round jar called an oil filter, please take a look. The colored fragments that you see with Manila envelopes are the outer edges of materials that capture contaminants that can block and damage the working parts of the vehicle’s engine.

When Is It Time to Replace the Oil Filter?

1.Replacement frequency

Most of the oil filter elements are spin-on disposable filter elements. Each filter has its own mileage and life. It is recommended to change to a brand new filter element every time the oil is changed or cars and commercial vehicles are replaced every six months. After all, it is not expensive. Don’t delay it for saving money. The working condition of the engine in normal operation. Most cars use disposable filters that are not removable for cleaning. When replacing the lubricating oil, the oil filter must be replaced at the same time, otherwise the quality of the lubricating oil will be affected.

  1. Kilometers

Generally 5000-7500 kilometers, bad weather or bad road conditions should be properly advanced. The distance can reach more than 3,000 to 15,000 miles. That’s a long way, so it makes sense to get the best oil filter possible. The replacement cycle of the oil filter is generally 5000 kilometers.

  1. depends entirely on what oil you use

Many manufacturers recommend that you buy a new oil filter every time you change the oil. When the oil filter is changed, it depends entirely on what oil you use. For example, the most traditional mineral oil has a 5,000-kilometer replacement cycle, so the oil filter element is also replaced with 5,000-kilometers. For example, if you use PAO-type fully synthetic engine oil, it is normal to change it every 10,000 kilometers. At this time, the oil filter is naturally replaced after 10,000 kilometers.

Why should I replace the Oil Filter in my car?

The main function of the oil filter is to filter the impurities and dirt in the oil, provide clean lubricating oil for the engine, reduce wear, and extend the life of the engine. The lubricating oil is stored in the oil pool. When the engine is running, the oil pump is driven to pump the oil from the oil pool, through the oil filter, and then through the oil pipeline to the parts that need lubrication, such as the crankshaft, camshaft, Rocker arm, and so on, finally, the oil flows back to the oil pool. Such reciprocating flow and constant work. Therefore, the oil filter needs to be replaced after a car has traveled for a certain number of kilometers. If it is not replaced or replaced later, it will affect the performance of the car, resulting in poor oil passages, lack of refueling, and other phenomena, and eventually lead to chronic engine damage or even engine overhaul.

If the oil filter is not replaced

The worst enemy of your engine? It is actually tiny dirt particles, invisible to the eyes. Dirt particles in the range of 10-20 microns can severely damage bearings, cylinders and other engine parts.

Particles smaller than ten microns can pass through the space between the shaft and the bearing. Particles between 10 and 20 microns will stay between the spaces and start to generate heat, which can damage the surface area.

Bad Oil Filter Symptoms

The performance of the oil filter failure includes: the oil lamp jumps, the lubrication is not smooth, the oil is burning, etc. Generally, the filter is blocked, resulting in low oil pressure and high oil temperature.

  1. Insufficient oil

Specifically, the first common fault is insufficient or insufficient oil. The oil filter is not oily or insufficiently oiled, usually due to the following reasons: the quality of the filter paper is poor, and the pore size is too small; the oil hole in the filter inner screen is small, and the oil supply is small; the filter has just been installed , The air in the oil circuit is not exhausted; the car oil circuit is blocked, no oil or less oil; using inferior oil, there are many gels, it is easy to block the filter paper, resulting in no oil in the oil circuit.

  1. oil leakage

The second common fault is oil leakage. The main reasons for the oil leakage of the filter are: the casing is broken; the edging is damaged and leaks; the outer sealing ring is broken and aging permanent deformation; the pressure resistance of the bottom plate or the casing does not meet the standard, and the bottom plate protrudes under the required pressure; the screw thread does not fit , The filter is washed off; the filter does not have a bypass valve, but the use time is too long or there are many impurities in the oil and the filter paper is not replaced as required and the oil leaks after the blockage.

oil filter
bad oil filter
oil filter


Consequences of using an unqualified inferior fuel filter

1.Perforation at the bottom of the oil filter

The bottom of the oil filter is perforated. Except for a few because of the blisters on the steel plate, more reasons are the material of the shell. Whether the bottom is easy to perforate is related to the thickness of the shell, but it is not the main reason. When the steel material is not good, the bottom of the oil filter is easily corroded and perforated due to the precipitation of water and impurities at the bottom, just like a person’s resistance ability is poor, and a little cold will catch a cold. Steel material is the key point. Good-quality oil filters occasionally perforate at the bottom, but the probability of perforation is extremely low.

2 . Sealing ring leaks

The material of the sealing ring is not good, and the temperature resistance of the sealing ring is not good. The oil filter will shrink after a period of use, causing oil leakage or oil leakage in the sealing ring. The verticality of the thread dies mouth is not good (not the standard 90-degree vertical), resulting in uneven sealing around (the left and right sides tilt error limit are 0.3 mm, and it is unqualified). At the beginning of the installation, due to the elastic correction of the sealing ring, There will be oil leakage. After a period of use, there will be some shrinkage. The side with large errors will shrink due to the heat of the sealing ring, and the elasticity of the sealing ring will be reduced, and the sealing performance will be greatly reduced, and oil leakage will begin.

3.Poor filter paper material

The filter paper of the fake and inferior oil filter is of poor material. It is soaked in the oil for a long time. The filter paper itself has a poor filtering effect at a high temperature and high-pressure environment. At the same time, it also produces a lot of paper dust, which causes the oil circuit of the engine lubrication system to block or cause Abnormal wear and tear of parts and components may cause the engine to lose oil in severe cases, resulting in severe damage or scrapping of the engine.


The cheapest insurance for a car engine is to change the oil frequently-a new filter must be replaced every time the oil is changed. This prevents the new clean oil from contaminating anything that may flow out of the old filter and ensures that the new oil has the highest possible efficiency while lubricating engine parts, reducing wear, and keeping the operating temperature constant. Health range.

If you want to know how often the oil filter should be changed, please change the oil filter every time you change the oil to simplify the operation. Following this schedule may cost you more money, but it will prevent your engine from clogging with dirt, sludge, or large metal fragments.

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