Have you ever thought of shortening the life of your beloved car because you did not replace it in time? Have you ever thought that because you don't have to replace the air conditioning filter on time, you often catch a cold? Have you ever thought of replacing the three filters and paying the price? Come, let's take a look at maintenance and talk about the car and not replace the three filters in time.

 

● Fuel filter

Before talking about fuel filters, I would like to talk about the quality of gasoline. The Iraqi oil field is very famous, and crude oil is relatively good. Iraqi crude oil has a crude oil wax content of 0.9% that can be measured at -30 degrees Celsius, which means that the lower the gasoline wax content, the lower the carbon chain content. The more long-chain carbon components contained, the less likely it is to burn, and the more easily the internal carbon of the engine is deposited. However, the crude oil content of our country is about 15% to 20%, which means that the domestic car environment is more severe. A good fuel filter is very important.

Gasoline filters, most people know that its role is to filter the impurities in gasoline. Because modern automobiles use EFI fuel supply, the oil pressure is relatively large. So now the fuel filter housing is wrapped, and the inner material is made of filter paper. The higher end fuel filter is made of nylon or polymer material.

Let's do an experiment. The above picture shows the use of more than 30,000 kilometers of fuel filters. After the clean liquid is added from the inlet, the color of liquid flowing out of the outlet after filtration in the fuel filter is brown. If the added liquid is gasoline, the filtered gasoline should maintain its original color. What we are now seeing is brown, which means that after the filter has passed 30,000 kilometers of filtration, the internal material loses its original effect because it contains too much impurities.

If we do not replace it at this time, then after the “gasoline” after the filter is burned, problems such as carbon deposition, dead fire, and power drop will easily occur inside the engine. In addition, regarding fuel consumption, I think this is a concern for car owners. When the effect of fuel filter filtration is poor, gasoline must be incompletely combusted when injected into the combustion chamber. Due to incomplete combustion, the power cannot be achieved. The ideal speed, then the owner is very naturally stepping on the gas pedal, is the case, the fuel consumption will follow.

 

● Air filter

Clean gasoline needs to be mixed with pure air in order to maximize fuel economy. We can see the contrast of the appearance of the air filter shown below, which is very obvious. The period for replacing the air filter is generally 10,000 to 15,000 kilometers. If the air filter exceeds the range of replacement, it will lose the impurities that filter the air into the engine. In this way, the internal piston, the intake and exhaust valves, and the piston rings will be started. The protection of the cylinder will lose its effect. Exaggerate to imagine what happens when the engine contains some small sand rubbing in the cylinder at 3000 rpm.

Of course, this is not so simple. After the maintenance period has not yet been replaced, the filtration effect is poor. Inspiratory difficulties lead to insufficient mixing of gasoline and air, prone to carbon deposition, and the power is reduced; in the long run, the fuel consumption is significantly increased. The cost will increase a lot. Therefore, it is very important to replace the air filter according to the normal maintenance cycle, otherwise it will hurt the engine to shorten the life and bring a series of maintenance costs. However, it is annoying.

● Oil filter

It is necessary to do maintenance and oil change every time. The figure below uses a semi-synthetic engine oil. According to the maintenance cycle, the number of kilometers to be changed is 7,500 kilometers. However, this man only changed the oil after 7,800 kilometers. When the oil was put in, we can clearly see the yellow oil. What color is used after 7800 km? The engine oil can play a role in sealing, lubricating, cooling, and decontamination in the interior of the engine. The most critical of these is the lubrication, but can the oil shown in the picture still have the lubrication function?

Let's take a look at the filtration inside the oil filter. Most of the oil filters use paper filter, mainly to filter the oxides and other impurities generated by the engine during operation. When the oxides and impurities adhere to the engine oil, the oil filter is required to filter. After the oil filter filters a large amount of impurities, the filter blocks the filter paper. At this time, the filtering effect has been greatly weakened and needs to be replaced. This will have an impact on the engine.

If we only replaced the oil filter and did not change the oil, it would have no effect, because the oil cleaning function is very important in addition to lubrication, after the oil filter is "contaminated", the filtered oil is also contaminated, with With impurities to lubricate, it is hard for the engine to think bad.

By comparing the old and new oil filters, we clearly see the difference between using a new oil filter after 7800 km. From the blackened oil filter, we can see that the oil has deteriorated, and the deteriorated oil has poor fluidity and high viscosity, which prevents the engine piston from working. In addition, if the resistance is large, the oil flow will be less, and the lubrication effect will be compromised. .

If the long-term hybrid (modified engine oil plus gasoline) combustion is bound to affect the engine. The problem can be solved effectively by replacing the oil filter, and changing the oil filter is not expensive.

● Air conditioner filter

In the spring period, many people have a fever and fever. These reasons are generally considered to be unadaptable during the conversion season. But have you ever thought that it was caused by air conditioning filters? The air conditioner filter is not used for a winter season. The bacteria attached to the air conditioner filter breeds for a long time. After the air conditioner is used in spring, the air conditioner directly blows the bacteria to the passengers in the vehicle. The entire vehicle is a bacteria-filled one. Place, fever is just like this.

The main function of the air conditioning filter is to filter the air impurities in the car, but the air conditioning filter has a certain replacement cycle. When the air-conditioning filter has become full of adsorbed impurities, the air-conditioning filter loses its filtering effect. If the air conditioner is turned on at this time, the impurities attached to the air conditioner filter will not be blown into the car. Whether it is bacteria or dust, I think passengers in the car are not happy.

 

Above: The air conditioner filter is not an activated carbon material but an ordinary model of air conditioning filter. The effect of replacing the air filter after exceeding 10,000 km is shown in the figure.

summary:

Through the three filters in the case of overdue maintenance, we can intuitively see the problem. A seemingly simple accessory is only for the maintenance of the owner on time, but only a few dollars, but in fact the impact is not so simple.

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