Why is the oil loss of Volkswagen turbochargers generally high?

Hello, turbocharging to string away and consume a part of the oil, Volkswagen common disease, I hope mine can help you, if you have any questions, please continue to consult, your satisfaction my pursuit! Have a great day!! [Car questions, ask the car master.]

4S shop professional technician, 10 minutes to solve. 】

Hello! Normally, the turbocharger will burn the engine oil, I wish you a happy car! If my reply can help you, please help choose it, thank you very much!

Generally, the engine with turbocharging, his power will be better, but, provided that at the same time, its fuel consumption will be higher than that without turbocharging, because turbocharging, will, b without turbocharged engine power will be a little better, I hope mine will be helpful to you, I wish you a happy drive [car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello Volkswagen with turbo burning engine oil is normal This is turbocharged [car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, this turbocharger has high fuel consumption, if you think it's appropriate, mine.

The turbine power consumption is a little higher.

Because the turbocharger also needs part of the oil to lubricate and cool down, compared with the ordinary naturally aspirated engine oil consumption is relatively more, but it also has a range, generally 5000 kilometers to consume about 1L of oil is normal, if it is too much, then there must be a problem! Need to inspect and repair! Hope I can help you!

[Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

The oil itself is consumed to a certain extent. If you consume too much, there is a problem of burning engine oil. Burning engine oil is caused by the following factors, as long as the following problems are solved, burning engine oil can be solved.

There are many factors that affect the burning of engine oil, such as: fuel quality, driving conditions, driving habits, maintenance habits, etc.

Avoid burning oil in turbocharged engines

Choose a high-quality lubricant:

Generally, the turbocharger is activated when the engine speed reaches 3,500 rpm and ramps up rapidly until 6,000 rpm. The higher the engine speed, the stronger the shear resistance of the oil is required. Only in this way can the lubrication capacity of the oil not be reduced at high speeds.

Therefore, when choosing a motor oil, you should choose a high-quality engine oil, such as high-grade fully synthetic engine oil.

First, the main reason for burning engine oil.

1. Use engine oil with poor quality or viscosity grade that does not meet the requirements. In addition, too low or too high oil viscosity can lead to poor engine lubrication, increased wear of piston rings and cylinder walls, and reduced sealing performance, resulting in oil burning.

2. The matching gap between the piston ring and the cylinder wall is too large, the piston ring is improperly installed or the sealing is poor, and the oil on the cylinder wall enters the combustion chamber, causing the phenomenon of burning the engine oil; In addition, poor sealing performance of the valve seal, damage to the crankcase forced draft valve (PCV) or crankcase vent blockage can cause excessive pressure in the crankcase to cause the oil to enter the cylinder with the crankcase gas and participate in combustion.

3. Burning engine oil caused by excessive oil filling. When the oil is filled above the center line, the part of the engine lubrication process that passes through splash lubrication will be too much into the combustion chamber due to the high oil pressure.

4. Oil leakage from turbocharger. The turbocharger is mounted at the front of the exhaust pipe and operates at a very high temperature, and the turbine and pump wheels can reach 120,000 revolutions per minute when the engine is running at full load. The turbine shaft has oil-lubricated floating bearings, and the car has one oil passage to the turbocharger.

Oil leaks from pipes or bearings can allow oil to seep from the turbocharger into the exhaust pipe. When the exhaust pipe temperature is high, the oil is baked and discharged into blue smoke.

5. There is leakage in the valve oil seal, which means that the oil leaks into the combustion chamber through the valve oil seal.

Second, the method of preventing the burning of engine oil.

1. Use engine oil that meets the technical requirements of the vehicle. Many car owners never read the vehicle manual, and they don't know what quality and viscosity grade oil their vehicles use for a few years, and there is a lot of arbitrariness in the use of engine oil. When using engine oil, one is to pay attention to the quality index, and the other is to pay attention to the viscosity index.

The quality index refers to the grade above SL as much as possible, and the viscosity index should be strictly in accordance with the provisions of the viscosity index in the automobile manual, and cannot be too low or too high.

2. Avoid frequent rapid acceleration and long-term ultra-high-speed driving. When the engine rotates at ultra-high speed, it is easy to break the lubricating oil film, resulting in poor lubrication and dry grinding of the rotating parts, and when it becomes a regular operation, it will make the engine wear abnormally and burn the oil, therefore, maintaining economic speed is one of the best ways to prevent the phenomenon of burning oil.

3. The oil must meet the specifications when filling. When the oil filling volume exceeds the center line, the repairman should be asked to pump out the excess oil, in addition, the oil volume should be observed before the next day.

4. If you find that the engine oil is burned, go to the maintenance station for inspection as soon as possible. If it is due to engine failure (such as poor piston ring sealing, valve oil seal leakage, cylinder gasket leakage, etc.), you should go to the maintenance station as soon as possible to check and repair the fault as soon as possible.

The part of the oil that burns the engine due to turbocharging is usually in the seals around the turbine, because the turbo rotates at a very high speed and the temperature is also high. So just change the seals, or change the turbine.

Avoid running at high speed of cold cars, and choose high-grade engine oil. Idle for a few minutes after driving at high speed. This slows down the wear and tear of the turbine. At the same time, the air cleaner is changed frequently to reduce the wear of the intake turbine.

Replacing the oil seal of the supercharger can be solved.

What is Burning Engine Oil? What to do if you burn engine oil? The French motor oil brand Yacco is here to teach you how to solve this problem:

To put it simply, the high-temperature mixture in the combustion chamber sneaks into the crankcase from the gap of the piston ring, and then hooks up with the oil vapor, in order to balance the pressure and slow down the aging of the oil, the car is equipped with forced crankcase ventilation equipment, and the mixture gas in the crankcase is introduced into the combustion chamber, but at the same time of ventilation, the oil vapor hooked up with the mixed gas also runs out of the crankcase. However, the engine oil can't run away, you have to separate it from the mixture, what should I do? An oil-air separator is installed at the end of the ventilation unit to separate the oil and gas mixture.

Theoretically, if the two are separated, they will return to their respective jobs and continue their work, independent of each other, that is, the oil flows back to the oil circuit of the cylinder head, and finally returns to the oil pan, where the mixture is sent to the combustion chamber and continues to burn. However, if the separation of oil and gas is not complete, the oil vapor will follow the mixture into the combustion chamber and be burned, which is what we call "burning engine oil", and what comes out of the exhaust pipe after burning is blue smoke, which is why you know that it is burning engine oil when you see blue smoke.

Why are turbocharged engines more likely to burn oil?

Many engines use aluminum alloy cylinder blocks and other components, due to the phenomenon of thermal expansion and cold contraction of metal, when the turbine is running, the gap between the engine cylinder and the piston will be reduced due to the rapid rise in temperature, so the turbocharged engine compared with the naturally aspirated engine in the initial design reserved a wider cylinder and piston clearance, so as to avoid high temperature expansion after the extrusion of the parts damage. In this way, when the engine is started, when the same viscosity oil is used, the turbocharged engine will have more oil and gas into the combustion chamber than the naturally aspirated engine, causing the oil to burn.

What are the disadvantages of burning engine oil?

1.Of course, it costs money and oil.

It is also a headache to add oil from time to time, and always check whether the oil level is sufficient.

2.It will affect emissions and generate carbon deposits.

Burning engine oil will affect the emission of exhaust gases, and the oil entering the engine combustion will produce carbon deposits that are difficult to clean, and there are many residual problems. In the worst case, it can also lead to spontaneous combustion of the vehicle, because the accumulation of engine oil is easy to come into contact with the hot exhaust manifold and turbocharger, and there is a risk of spontaneous combustion.

Although it is said that burning engine oil is either a design problem or a production process problem, there are many problems with burning engine oil, and once encountered, it is better to deal with it as soon as possible.

In fact, many models of Volkswagen have the phenomenon of burning engine oil, my Tiguan is that the oil is burned very strong, almost 3000 kilometers or so to add a liter of engine oil, and then use this oil almost more than 7,000 kilometers when adding a liter can be directly replaced in the oil change cycle, I hope it will be equally effective for you.

Turbine engine serious oil burning is a common phenomenon, not necessarily only FAW-Volkswagen cars, there is no better way, my experience is to change the oil frequently, and three filters, try to accelerate gradually when driving, avoid cold throttle. If it's too serious, it's better to go to the garage for maintenance.

To find the source of oil leakage with less oil, the general situation is to repair the engine, which requires replacing the piston ring, checking whether the piston ring groove is too large, and the piston needs to be replaced if it is too large. There are also cars with cylinder liners, check whether they are worn too much. It is also possible to leak oil into the intake chamber, which is analogous to an oil leak from a supercharger, and it is possible to mistake it for a loose piston ring.

These need to be carefully checked by the maintenance worker.

It is estimated that the oil-gas separator is damaged, and if there is a problem with the oil-gas separator, the engine oil and gasoline gas may not be separated well, and they all enter the combustion chamber, so there is a burning of engine oil. Check whether the oil-air separator is damaged, if it is not broken, it may be a problem with the piston ring, go to the repair shop to check it carefully.

Why does a turbocharger burn oil? When the rotor in the exhaust gas turbocharging is working at a high speed of more than 100,000 revolutions in a high-temperature working environment of more than 600 degrees, the oil lubricating the rotor and the air filter element that filters the air will be incorrectly selected or not maintained in time, which will lead to the turbocharging and burning the oil!

At present, there are more turbocharging and piston ring anomalies. It is best to measure the cylinder pressure. If there is nothing wrong with the cylinder pressure. That might be taking into account the turbocharging aspect.

Reasons for burning engine oil: long-term unclean oil circuit, untimely replacement of antifreeze, and too long oil service cycle.

The harm of burning engine oil: it will continue to generate greater carbon deposits, which will seriously pull the cylinder. The three-way catalytic converter is completely damaged in the poor combustion exhaust gas,,, and the continuous life-sustaining oil will eventually cause the engine to burst the cylinder.

The three points of the car that burn the engine oil will inevitably occupy one point, and the most important point is the high temperature caused by the oil circuit not being effectively cleaned.

Causes of piston ring seizure.

The oil used for the stuck piston ring will be caused by the oil scraping not clean and remaining on the cylinder wall, causing the oil to participate in combustion and burn the oil. Among them, the cylinder wall will be seriously worn due to the delay in processing, and the engine will have to be disassembled.

In fact, the treatment principle of piston ring stagnation should start from the oil circuit, the reason for the stagnation is the beginning of the oil circuit, the oil bearing temperature is 110 degrees, and the high temperature caused by the long-term unclean oil circuit makes the oil at a temperature of 120 degrees or higher for a long time, so that the oil will be exhausted in advance, the small hole of the oil ring is very small, and the oil inside will be dried and scabbed for a long time, and a cylinder stuck is 5000 kilometers of a liter of oil, at this time, the working conditions of other cylinders will also begin to be bad, and soon the 4 cylinders will be stuck. It becomes a liter of engine oil for 1000 kilometers or even hundreds of kilometers. Therefore, in order to solve the problem, we must start from the root oil circuit, which is the way to remove the root.

At present, the effective method is to use the oil burning oil repair agent of the original solution of the company to clean the oil circuit and the cylinder, and release the carbon sludge stuck in the piston ring by penetrating into the piston ring. For most of the vehicles where the piston ring does not have a counterpart, the stagnation can be completed as long as it is repaired in this way, and the oil wiping function can be restored to improve the phenomenon of burning oil.

My colleague's car is also burning engine oil, the exhaust valve is fine, planning to release the piston ring, directly using the Si Youpu stock liquid type of burning engine oil repair agent, after 5 times in a row, from the previous 1200 kilometers plus a liter of engine oil to the current 6000 kilometers without adding oil, the price comparison, overhaul is the most such an effect. The cost is only one-tenth of that of an overhaul, and the residual value of the car is maintained.

"High temperatures" are the biggest test for turbocharger operation. When the turbine is running, the first contact is the high-temperature exhaust gas (the first heat source) discharged from the engine, which pushes the turbine wheel and drives the compressor wheel on the other side to run synchronously. The rotation speed of the entire blade axle is often 120,000-160,000rpm.

Therefore, the heat generated by the high-speed rotation of the turboshaft is very impressive (the second heat source), and the temperature of the air compressed by the compressor impeller (the third heat source) is the most severe high temperature burden of the turbocharger. The turbocharger becomes a self-contained operating system with high-temperature components. So "heat dissipation" is very important for turbochargers.

There are special oil channels (heat dissipation and lubrication) inside the turbine body, and many of them are designed with organic oil channels and water channels at the same time, which reduce the temperature of the supercharger through dual heat dissipation of oil cooling and water cooling.

Due to the high temperature, the oil seal will age quickly, the sealing performance will decline, the oil will enter the engine with the air flow for combustion, and the turbine due to the high speed, the fine impurities in the air will also cause the impeller to lose its roundness, and the oil seal will also be poorly sealed, which will cause the oil to burn.