The engine oil of the motor engine turned black not long after it was changed?

Hello: Engine oil is equivalent to the "blood" in the automobile engine, which flows between the engine parts, plays a lubricating role, and prevents serious wear and tear between parts and components; In addition to this most important function, it also has some "additional functions", such as cooling and cooling, cleaning and cleaning, sealing and leakage, rust and corrosion prevention, shock absorption and cushioning. The main reasons for the blackening of engine oil are as follows:

1.The quality of the fuel, the higher the olefin content in the fuel, the higher the sulfur content, the easier the formation of sludge in gasoline engines, the formation of soot in diesel engines, and the blackening of engine oil.

2.The engine structure and working conditions are different. The sludge in the oil pan of the engine oil engine is mainly caused by the car being stopped and driving, the power is not fully utilized, and the combustion does not completely occur. Diesel engines do not burn completely to form soot, which can easily cause the oil to turn black.

3.The engine is overloaded for a long time, running at high power and high temperatures, and the oil is oxidized and blackened.

4.The replacement cycle is too long, the engine load is large, etc.;

5.Change the oil without cleaning the engine or change the oil filter. After the new oil is added, the new engine oil is polluted by the clean waste oil, and the cleaning function of the new oil removes the original glue, carbon deposits, and sludge from the engine; Once mixed, mix it into the oil to make it black.

Blackened oil doesn't mean it's spoiled, and the quality of the brand** oil on the market is quite high, and it can maintain lubrication at high temperatures. Generally speaking, when new oil is added, sediments such as sludge and carbon deposits on the parts are dispersed in the oil, which will cause the oil to turn black after a certain period of time. An experienced master will use the viscosity of the oil to determine whether it needs to be replaced, rather than observing the color of the oil turning black and concluding that it needs to be replaced.

Change oil according to maintenance interval (minerals: 5000 km or 6 months, semi-synthetic: 7500 km or 9 months; Fully composited:

10,000 km or 1 year; Appropriate adjustment according to the vehicle environment), the selection of higher quality engine oil, regular cleaning of the lubrication system, etc., can effectively alleviate the blackening of the engine oil.

Hello, the new oil will turn black after working for a few hours, which is a normal situation, because the temperature of the area where the oil works is high, as long as there is viscosity and lubrication.

There are two main reasons for blackening. The first is due to the action of the detergent dispersant, and the second is due to the oxidation of the oil in use. If an oil does not turn black during use, it means that the oil is not performing its normal cleaning function at all.

Today's engine oils generally contain a cleaning dispersant that absorbs the carbon deposits and oxides of the engine oil from combustion so that they can be replaced during oil changes, thus ensuring that the inside of the engine is clean.

Change the oil and oil filter regularly. After a period of use, the viscosity of the oil becomes thicker and acidic products are produced, which will damage the engine components and affect the normal operation of the engine if not replaced regularly.

This proves that the oil you use is good for cleaning! This is normal. It's not normal if there is no change.

The engine oil will turn black because the fuel is impure, containing sulfur and other elements, which is easy to form sludge in the engine and hinder the operation. In order to overcome this, the lubricating oil should be added with a dispersant to prevent the formation and decomposition of oil sludge, the higher the quality of the oil, the better the dispersion, but the oil is easy to turn black, so the high-quality oil turns black faster than the inferior oil, so the lubricating oil blackening can not be an indicator of judging the quality of the oil, and the blackening quickly does not mean that it cannot be used.

This is normal. Engine oil has many functions, in addition to the lubrication function, there are also carbon removal, cooling, sealing and other functions, oil blackening is the specific embodiment of the function of removing carbon deposition, as long as the engine starts to run, the oil will begin to take away the carbon black produced by the engine.

This is normal, but the quality of the oil is not judged by the color.

The engine oil is not clean in any case, there will be organic oil residues on the oil channel wall and the hydraulic tappet, and when the new oil is added, the oil will be mixed with the original old oil after circulation, and the whole will turn black. In fact, when the new engine oil is mixed with a small amount of black engine oil, the whole will turn black, and it is like dropping a few drops of ink into a basin of water, and the whole basin of water will turn black. Although the engine oil looks dark, its performance is not affected, and it cannot be judged by whether the oil is black or not.

Therefore, when changing the engine oil, the cleaner the old engine oil, the better.

1. Cleaning. The air contains a large amount of dust, sediment and acidic substances, which are not only easy to be adhered to by leaking fuel, but also easy to form a hard insulation layer under high temperature baking, which makes the heat dissipation performance of the parts worse, and is easy to be eroded by the static electricity of the body and erode the paint surface, making it fade prematurely.

1. Clean the air filter and filter the mega sensitizer.

Dirty air filters can steeply block fresh air from entering the cylinder, resulting in over-concentrated air, incomplete combustion, reduced power, and excessive exhaust air. Modern air filters generally use paper filters, and when cleaning, pay attention to the following: do not wash with water or oil, and should use the tap and purge method.

The light pat method is to gently pat the end face of the filter element to make the dust fall off. The blowing method is to use the inside of the compressed air filter element to blow outward, and the air pressure: force should not be exceeded.

2. Clean the oil filter.

The blockage of the oil filter will hinder the flow of lubricating oil, making the engine poorly lubricated, increased wear and tear and even tile burning. For this purpose, it should be cleaned or replaced regularly. It is usually replaced every 8000km if the weather is dry. It should be shortened to 5 000 km to replace once.

3. Clean the battery.

Modern Can Chai Tong cars generally use maintenance-free batteries, first clean the top of the battery to avoid short circuits caused by electrolyte or other impurities between the poles; Secondly, clean the battery binding post to prevent the joint from producing oxides and causing poor contact. The vent should be unobstructed to avoid excessive pressure or temperature in the battery and cause the hand to burst.

The engine oil of the power turned black not long after it was replaced, so it turned black and black when it was heated here.

Normal. It is very normal for the engine oil to be very black, the oil turns black because the engine oil plays a role in the operation of the engine, in addition, when the engine is working, the temperature and pressure are very high, the engine oil has been circulating in this environment, and it will slowly oxidize and turn black.

It is not caused by the deterioration of the oil. Therefore, if the oil is very black, if you don't use inferior oil, if you don't maintain the car according to the maintenance manual, under normal circumstances, the oil is very black, it is no big problem.

The composition of the motor oil is base oil + additives. This is true for mineral oils, semi-synthetic oils and fully synthetic oils. However, these are only the base oils of engine oils, and the types and formulas of additives seem to be similar to those actually used, but they are very different.

The main role of additives in lubricating oil is to improve and enhance the various properties of engine oil, so that the oil has better lubrication, cleaning, cooling, sealing, anti-rust and anti-corrosion, cushioning and shock absorption. The types of additives can be as many as more than 10 kinds, according to the formula needs to increase and decrease the amount to meet the characteristics, that is to say, the higher the grade oil, not only the better the base oil used, the more types of additives, the better the quality and naturally.

There are many types of additives in motor oil, and one of them is called"Cleaning dispersants"。It can be chemically neutralized with gum, sludge and other chemicals in engine oil. In other words: it can remove the glue, sludge and other dirt inside the engine"Wash it down"。

The carbon deposits and sludge in these engines are all black, and the oil will naturally turn black, and after being washed off, the oil color will naturally turn black, so it is very normal for the oil to be very black.

It is precisely because of the high content of dispersant that the engine oil has a strong cleaning ability"black fast", while the oil with a low content of cleaning dispersant is just the opposite. If you use thousands of kilometers of engine oil, the color has not changed at all, and it is still crystal clear, which is abnormal, and it is likely that the cleaning ability of this engine oil is too poor, resulting in it"Nothing washes off".

Engine oil has a cleaning effect, which can clean the carbon deposits and vertical oxides inside the engine and dissolve them, and the black substances we see in the engine oil are the carbon deposits inside the engine and the oxidation products at high temperatures.

No matter how translucent the oil is, it will turn black when it is added to the engine for a period of time, which is the oil playing its cleaning role, so it is completely normal to turn black. If the used oil is still as clear as new, it must be fake oil.

The engine's oil had just been changed and it turned black not long afterIt can be cleaned to prevent the oil from burning, and daily maintenance is very important

How often does burning oil occurThere is no warning of burning engine oil, and it is said that it will burn, and the illness will come like a mountain. Moreover, the new car has not burned engine oil for tens of thousands of kilometers, and once it starts to burn engine oil, it will become very serious in half a year and half a year. I don't think you want to go through such a process, but it has happened that the engine has been revitalized by oil, and it has become a serious oil burn, so it is recommended to check it first, and don't rush to deal with the engine problem blindly.

Burning engine oil will lead to shaking, weakness, high fuel consumption and other possible phenomena, these are caused by burning engine oil, don't be in a hurry to deal with small phenomena, first deal with the problem of burning engine oil on the main line.

Precautionary approachBe sure to clean the oil circuit, with effective cleaning, and must be suitable for the domestic oil circuit cleaning, do not use indiscriminately, with detergent and with the mold grip effective cleaning is two different things.

Decrypt the correct fump inspection method and repair plan for burning engine oil.

1. Some people think that once the engine oil turns black, it should be replaced: the color of the lubricating oil turns black is the realization of serious deterioration of the oil, so it must be replaced.

2. In fact, this is only for the lubricating oil that does not add a static dispersant to weigh the hand, this understanding is not comprehensive, but the lubricating oil used in modern cars is generally added with a quiet decomposer.

3. This kind of sedative will wash off the adhesive film and black carbon deposits adhered to the piston and disperse them in the oil, thereby reducing the generation of high-temperature precipitation in the engine, so the color of the lubricating oil is easy to turn black after a period of use, but this does not mean that the oil has deteriorated. This sedative washes off the adhesive film and black carbon deposits that adhere to the piston and disperses them in the oil to reduce the formation of high-temperature precipitation in the engine, so the color of the lubricating oil is easy to turn black after a period of use, but the oil is not completely deteriorated at this time.

4. In the process of using engine oil, the quality of engine oil will gradually decline due to movement, pollution, oxidation and other reasons, in order to make the lubricating oil give full play to its performance, it needs to be replaced after a certain service life

5. The general time for changing the engine oil is 5,000 kilometers, so when doing car maintenance, it is necessary to do it with the stove in the way of 5,000 kilometers or once every three months

Normal, the oil will be like this after use, and it will be good to maintain it on time.

The engine oil will slowly turn black, and the engine will be loud?

1.Didn't maintain it on time, and drove more than one kilometer.

2.Use poor oil.

3.Diesel vehicles.

4.The bridge is not well maintained, the wear and tear inside is more serious than the scattered chain, the last oil is too dark, add new oil into it, it will also turn black after starting, because the oil has the effect of cleaning.

Therefore, the blackening of the oil that has just been replaced is not necessarily caused by the dirty inside of the engine, as long as the oil is changed according to the specified time of the liquid shaft. Note: Be sure to change the oil and the oil filter (or filter) regularly.

After a period of use, the viscosity of the oil becomes thicker and there are acidic products produced, which will damage the engine components and affect the normal operation of the engine if not replaced regularly. ”

Hello The first thing is to see if your engine oil is a regular brand, because if it is not a regular brand, or if you buy a fake canopy oil, then those engine oils must soon have problems. Turning black means that the engine oil is dirty and needs to be replaced, and the inferior engine oil of the rock block can only be used for a short time before it will appear in its original form.

This should be like there are some special substances in the engine, or the engine has some noisy problems, and you have not repaired or left some problems with the upgrade.

Good engine oil will clean up the sludge and turn black to normal.