Why does the engine burn oil?

Updated on Car 2024-08-06
15 answers
  1. Anonymous users2024-02-15

    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.

  2. Anonymous users2024-02-14

    The main reason for engine oil burning is that the piston ring is damaged, which causes the cylinder to leak, and the oil enters the combustion chamber, and then participates in the combustion of mixed gas, and finally causes the oil to burn.

    The main manifestation of the phenomenon of burning engine oil in the car is the blue smoke from the exhaust pipe, and the phenomenon of shaking the car in the idle state.

    Because the fuel quality is not synchronized with the standard, the engine will produce carbon deposits in the process of operation, if it is not cleaned for a long time, it is very easy to accumulate a large amount of carbon deposits in the combustion chamber, and after the engine produces carbon deposits, it will lead to a great reduction in the performance of the car, and at the same time will cause various problems.

    Carbon deposits will be deposited in the grooves of the piston, causing the piston rings to stick together, which will cause the piston rings to get stuck and not be completely sealed, and the oil will not be able to flow back properly during the working process, so it will lead to an increase in oil consumption.

    The resulting carbon deposits can exacerbate wear between the piston and cylinder walls, resulting in too large a gap between the two, which will eventually cause the oil to enter the combustion chamber for combustion.

    If the air filter is not cleaned in time, it will cause the engine to have poor air intake, so that the intake pressure drops, forming negative pressure, and in the case of negative pressure, the oil will enter the combustion chamber for combustion.

  3. Anonymous users2024-02-13

    The reasons for the engine burning oil: 1. The matching gap between the piston and the cylinder wall is too large; 2. Improper installation or poor sealing of the piston ring; 3. Poor sealing performance of valve sealing ring; 4. The pressure in the crankcase is too large due to damage to the crankcase ventilation valve or the crankcase vent is blocked; 5. Do not replace the oil and oil filter after the expiration date, and use unqualified oil. Check out which of the above reasons is yours?

  4. Anonymous users2024-02-12

    There are four common reasons for burning engine oil.

    1.If you don't clean the oil circuit for a long time or don't do effective oil circuit cleaning, detergents are used at will, and using detergents and effective detergents are two different things;

    2.The antifreeze replacement cycle is too long or not changed at all;

    3.The oil change interval is too long;

    4.Long-term or often short-distance driving.

  5. Anonymous users2024-02-11

    The reasons for the engine burning oil: 1. The fuel quality is not synchronized, which makes a large amount of carbon deposits form in the combustion chamber during the engine driving; 2. The valve oil seal is corroded and aged, resulting in poor sealing; 3. The oil seals of the front and rear crankshafts are aging; 4. The piston ring is stuck and cannot be completely sealed; 5. The wear between the piston and the cylinder wall causes the gap to be too large. Check the method of burning engine oil:

    1. Check whether the exhaust pipe is smooth, if not, clean or replace, and then drive for a period of time to see if the oil is missing, and whether the exhaust pipe is still emitting blue smoke; 2. Measure the cylinder pressure, if the cylinder pressure is normal, it is the burning of engine oil caused by the aging and damage of the valve oil seal, and the valve oil seal can be replaced.

    The causes of engine oil burning include natural wear and tear, improper maintenance, excessive oil addition, excessive dirt in the water tank in the cooling system, poor quality or viscosity grade of the oil, and excessive clearance between the piston ring and the cylinder wall. The specific reasons are as follows:

    1. Burning engine oil means that the engine oil enters the combustion chamber of the engine through a certain way and participates in combustion together with the mixture.

    2. Mainly due to the damage of the piston ring, the cylinder leaks, and the oil enters the combustion chamber. With the increase of the mileage of the car, the wear between the piston and the cylinder gradually increases, and when the wear increases to a certain extent, the cylinder will begin to blow gas, and then the oil phenomenon will be generated. When the valve oil seal is damaged, it will make the phenomenon of burning engine oil more obvious.

    3. The blockage of the air filter will lead to poor air intake, which will reduce the intake pressure and form negative pressure, so that the oil will be sucked into the combustion chamber under negative pressure and cause the oil to burn.

    4. There is too much dirt in the water tank in the cooling system, and the radiator and condenser are too dirty, which reduces the ventilation and heat dissipation capacity and increases the normal working temperature of the engine. Due to the high temperature, the quality of the oil film produced by the lubricating oil when rubbing is reduced, and the wear of the cylinder is intensified.

    5. The low quality grade of the engine oil will lead to aggravated wear, and the oil viscosity is too low or too high will cause poor engine lubrication, which will increase the wear of the piston ring and cylinder wall, and reduce the sealing performance, resulting in the burning of engine oil.

  6. Anonymous users2024-02-10

    Why do cars burn engine oil.

    The main phenomenon of burning engine oil is that the exhaust pipe discharges blue smoke and searches, and the oil consumption in the engine increases significantly. There are two reasons for this:

    1. Natural wear and tear.

    With the increase of the mileage of the car, the wear between the piston and the cylinder gradually increases, when the wear increases to a certain extent, the cylinder blow-by will begin, and then the phenomenon of burning engine oil will occur. When the valve oil seal is damaged, it will make the phenomenon of burning engine oil more visible.

    2. Improper maintenance.

    1. Maintaining the engine according to the specified mileage will prolong the service life of the engine. On the contrary, even if the mileage is exceeded and not insured (i.e., the insurance is delayed). If the oil is too dirty, the impurities in the oil will accelerate the wear of the engine cylinder.

    2. Too much oil is added.

    3. Improper selection of air filter element, machine filter element, engine oil, etc., the gas impurities entering the cylinder can not be well purified, and all kinds of dust particles enter the cylinder, accelerating the wear of the cylinder. The quality of the filter element is poor and does not play the role of the magazine in the filter oil. Counterfeit engine oil or the oil used does not match the oil grade of the vehicle used, so that it will not be able to form a good oil film on the friction surface of the engine.

    4. The ignition time is too early or too late. Premature or late shock will increase the temperature of the engine, and in severe cases, the piston will fall off the top and the cylinder block will be scrapped. In its initial stage, there will be serious cylinder blow-by, burning and leaking stool oil.

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    5. There is too much dirt in the water tank in the cooling system. The radiator and condenser are too dirty, which reduces the ventilation and heat dissipation capacity, and increases the normal working temperature of the engine. Due to the high temperature, the quality of the oil film produced by the lubricating oil during friction decreases, and the wear of the cylinder is intensified.

  7. Anonymous users2024-02-09

    1. The gap between the piston and the cylinder wall is too large, resulting in the oil splashing up and down to the combustion chamber as the piston moves up and down.

    2. The viscosity of the oil is too low, and the lubrication effect is not good, which aggravates the wear of the piston ring, resulting in upward channeling and volatilization.

    3. The piston ring is worn, or the counterpart position is reversed during packaging.

    4. The vent of the crankcase is blocked, resulting in excessive oil pressure, increased backflow resistance, and carbon deposition caused by burning and detaining on the inner wall of the cylinder for a long time.

    5. The valve oil seal is aging and failing, and under the influence of the vacuum degree of the intake pipe, the oil enters the cylinder from the gap between the valve stem and the duct hole for combustion.

    6. If there is too much oil filling, it will also flow into the combustion chamber, resulting in the phenomenon of burning engine oil.

  8. Anonymous users2024-02-08

    1. Impurities in the engine oil will accelerate the wear of the engine cylinder.

    2. Too much oil is added.

    3. Improper selection of air shelter and tumble filter element, machine filter element, engine oil, etc.

    4. The ignition time is too early or too late.

    5. There is too much dirt in the water tank in the cooling system.

  9. Anonymous users2024-02-07

    1. Piston ring wear (phenomenon: abnormal gas out of the crankcase air port), 2. Cylinder liner wear (same phenomenon as before), 3. Valve sleeve wear, 4. Poor oil return of the supercharger or bearing wear (carbon deposits or oil leakage can be seen when the volute is disassembled).

  10. Anonymous users2024-02-06

    Because the engine is powered by different strokes, but when the engine piston is damaged, there will be air leaks between the different cylinders of the engine, causing the lubricating oil to enter the engine and burn as fuel.

  11. Anonymous users2024-02-05

    A cylinder head head is damaged due to lack of water.

    Second, the lack of engine oil causes the piston ring to increase the wear, resulting in the channeling of the engine oil.

    Oil leakage from the three-valve seat insert.

    Fourth, the lack of water leads to the high temperature of the cylinder wall, and the oil cannot be cooled, resulting in increased wear of the piston ring.

  12. Anonymous users2024-02-04

    There are two kinds of engine oil: one is caused by valve oil seal, and the other is caused by piston rings.

  13. Anonymous users2024-02-03

    The main reasons for burning engine oil are1The piston rings and cylinders are worn, and the mating clearance is too large, causing oil to escape into the combustion chamber. 2.

    Excessive carbon deposition will cause the piston ring to jam and lose its elasticity, resulting in the weakening of the oil ring scraping effect. 3.The valve oil seal is aging and cannot effectively prevent the oil from entering the combustion chamber through the valve.

    4.Turbocharger oil leak. Oil seeps from the turbocharger into the exhaust pipe.

    Mosheng releases the stuck oil ring through dismantling cleaning, softens the valve oil seal, and repairs the cylinder wall wear without dismantling, so as to easily solve most of the oil burning problems of the car.

  14. Anonymous users2024-02-02

    Most of the engine oil burning is caused by the piston ring being trapped by carbon deposits. Relying on the addition of high-viscosity engine oil to continue life is only an expedient measure to cure the change. The poor power of the engine is due to the fact that the oil participates in the combustion and forms more carbon deposits, which in turn aggravate the degree of oil burning and form a vicious circle.

    Excessive carbon deposits will clog the fuel injector, resulting in poor atomization and poor combustion, resulting in higher fuel consumption and lower power. In the long run, it will cause cylinder wall strain, whispering or even bursting, and finally the engine can only be disassembled for overhaul.

    Four reasons why you burn engine oil.

    A ...If you don't clean the oil circuit for a long time or don't do effective oil circuit cleaning, detergents are used at will, and using detergents and effective detergents are two different things;

    IIThe antifreeze replacement cycle is too long or not changed at all;

    IIIThe oil change interval is too long;

    IVLong-term or often short-distance driving.

    The above four points of the vehicle that burns engine oil must be occupied by one or all four points.

    How the piston rings are stuck.

    The principle of piston ring stagnation should start from the oil circuit, the oil temperature is 110 degrees, and the high temperature caused by the oil circuit is not clean for a long time, so that the oil is 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 baked dry 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 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.

    The solution to burning the oil.

    In the habitual thinking of car enthusiasts, they always think that burning engine oil should be overhauled, so that they not only have to bear high maintenance costs, but also bear the unpredictable risks and depreciation losses brought about by the overhaul. Destroy the airtightness and precision of the engine. And there is a possibility that the engine oil will burn again after tens of thousands of kilometers, so overhauling the engine is not sustainable.

    Now the dismantling-free technology has been very mature and gradually accepted by the majority of car owners. In particular, the non-destructive repair products containing PNF patented technology have completely gotten rid of the technical shackles of the operation of the auto repair shop, and the owner can operate it himself without removing a screw, and the piston ring is repaired and released during driving, and the effect is remarkable.

  15. Anonymous users2024-02-01

    1. The owner should replace the valve oil seal of the vehicle in time to ensure the valve tightness. The valve oil seal will be aged and seriously worn out after long-term use, and the vehicle with a longer service life or more kilometers is more likely to burn engine oil; 2. The oil with appropriate viscosity can increase the tightness between the engine piston and the cylinder wall, and the use of this oil can alleviate the phenomenon of oil burning, but it cannot be completely eliminated;

    3. Replace the piston ring of the car, and regularly clean the carbon of the surface area of the piston ring;

    4. Check the oil ruler frequently, and the scale of the oil ruler is generally added to the best between 4 and 5, that is, eighty percent of the position, too much or too little. In addition, regularly replace the oil and oil filter spare parts according to the requirements of the product manual; 5. Choose high-end or high-quality engine oil, especially for engines with turbochargers, because their higher operating temperature and higher oil requirements. Choose an oil with a low volatility rate, as oil volatilization can also cause the car to burn oil.

    In addition, choosing a fully synthetic engine oil can greatly reduce the phenomenon of burning engine oil;

    6. Develop good driving habits, especially for new cars during the run-in period, the speed should not exceed 90 kilometers per hour, and the engine speed should not exceed three-quarters of the maximum speed.

    Through the above methods can solve the phenomenon of engine oil burning, the owner should avoid the above wrong methods in daily maintenance, and prolong the service life of the engine.

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