What s going on with burning oil in a car engine? How to repair?

There are four types of engine oil burning;

1. The EGR valve is damaged, and the oil exhaust gas of the engine enters the combustion chamber, causing the oil to burn. Judgment method: Remove the air intake pipe and check whether there is obvious oil stain near the EGR valve. Solution: Repair or replace the EGR valve.

2. The gap between the engine valve and the valve guide is too large or the valve oil seal is aging and the seal is not tight, so that the oil enters the combustion chamber from the valve position, resulting in oil burning. Inspection method: Open the oil filler cap to check whether there is blue gas spraying, if there is air leakage; None good.

Solution: Replace valves, valve seals, valve guides, etc.

3. The engine cylinder head gasket burns through, causing the oil to leak into the combustion chamber from the oil channel, thereby burning the oil. Judging method: remove the spark plug and check the cylinder pressure, if the air pressure of the adjacent two cylinders is similar and the air pressure is lower than the standard value, there is a cylinder string, which may cause oil leakage.

Solution: Replace the head gasket.

4. The gap between the piston, piston ring and the cylinder wall is too large, causing the oil to enter the combustion chamber for combustion. Judgment method: pull out the oil dipstick and observe whether there is a blue gas spray at the mouth of the oil dipstick.

Yes, burn the engine oil; None, do not burn engine oil. Solution: Engine repair, replacement of pistons, piston rings, cylinder liners, etc.

There are two possibilities, the first is that the oil exceeds the ruler line, causing the oil to burn too much. The second is that the oil ring between the fire piston rings of the engine cylinder liner fire piston temporarily burns the engine oil in a gap, or the gap is too large to burn the engine directly, it is recommended to go to the repair shop to overhaul the engine, the cost is less than 1,000 yuan. In the first case, it will be fine after a period of time.

Hello! Automobile engine burns oil: 1It is because the wear gap between the engine cylinder wall and the piston ring is too large. 2.The openings of the piston rings are strung at an angle. 3.Poor valve sealing.

Repair: replacement or boring of cylinder liners of the engine, replacement of pistons, piston rings, piston shaws, piston shaw bushings.

First, whether the vehicle emits blue smoke.

When the piston ring sealing effect of the engine is reduced, or the residual lubricating oil on the cylinder wall is not cleaned, the excess oil will remain in the combustion chamber and be burned together with the mixture, and the exhaust gas after combustion is usually blue with a pungent burnt smell. In addition, in addition to piston ring damage that can cause oil to enter the cylinder, damage to the valve seals can also lead to oil burning. Valve seals are usually made of rubber and plastic, and when they work in a high-temperature environment inside the engine, they harden and lose their elasticity over time, and the oil will flow down the valve stem into the cylinder to participate in combustion.

Therefore, to distinguish the real sense of the engine oil failure, you can judge by the exhaust emission color.

Second, whether the oil consumption is greater than the normal consumption in a fixed cycle.

It is generally believed that the oil consumption should not exceed 1 liter for 1000 km, but different models have different regulations, which can be referred to the vehicle's maintenance manual. During the initial 10,000 km run-in period of the new car, the oil consumption may reach 1,000 km per liter; After 10,000 km, the oil consumption will remain within 1,000 km. The owner can rely on this data to observe, check the oil level before using the car and make a record, and after a cycle, you can judge whether the vehicle has an oil burning fault.

Third, whether the vehicle has oil leakage.

Leaking engine oil is not the same as burning engine oil, but they can also lead to a loss of engine oil. If you want to determine whether the vehicle has a real oil burning fault, rather than an oil leak caused by an oil leak, you must first rule out the problem of oil leakage in the vehicle. For example, the internal oil seal of the turbocharger is damaged, causing the oil to flow into the exhaust pipe for combustion and evaporation, such an oil leakage phenomenon is very hidden, and the leakage point can only be found after careful investigation.

After eliminating the phenomenon of oil leakage in the vehicle, if there is still a frequent shortage of oil, it can be basically determined that the vehicle has a fault of burning oil. The above three points are common methods for judging the burning of engine oil in vehicles, and when applying, it is necessary to judge the results after combining the three methods, rather than meeting one of the conditions to think that the vehicle has a fault of burning engine oil.

If you burn the engine oil slightly, you can use a lot better oil like Magic Red, and I changed this oil when I burned the engine oil lightly in my car before, and the phenomenon of burning engine oil after using it has been alleviated a lot. Because of the high quality of this oil, PAO base oil is used. I usually use high-speed engine oil, which has good high temperature resistance, which can maintain the temperature of the engine well, and the power of the car is still very sufficient under high-speed operation.

If you don't burn the oil and don't repair the engine, you can make up the oil in time, I first want to make up a 1 liter of engine oil when I run about 10,000 kilometers, and the oil power of the G T Magic Red engine of PAO has not decreased, and it is better than the original Mobil. Shell is very clean, but the engine oil can not solve the problem of burning engine oil, and high-quality engine oil can slow down and increase the power by the way. Shell has been changed in the 4S store before, and the silence is better than Mobil, but the power is a little weak, and now I don't worry about the Shell sold outside, and I haven't used it for a long time.

Burning engine oil can only be overhauling the engine and replenishing the engine oil, the car burns the engine oil for the maintenance of fully synthetic engine oil, this is right, I cc do not need the original factory to use the PAO's G T magic after the red engine oil will improve a lot, and the start is smooth. It is better to choose a PAO fully synthetic engine oil with strong cleanliness.

My car is the G T magic red that I changed when I burned the engine oil, and the four types of PAO engine oil are compared with the semi-synthetic engine oil used before, and the power is enhanced a lot, and the car is very easy to drive. On the other hand, it is quieter, and there is no abnormal sound in the starting and driving car.

I didn't repair the engine, because the EA211 engine will still have the risk of burning oil after the engine is repaired, it is useless. Now it's a higher quality G T magic red engine oil maintenance, the power has been improved a lot, and the trunk usually has two more liters of oil to make up. As long as the power is ok, it is a trivial matter to fill the oil yourself, I use magic red or 15,000 kilometers to maintain once, which is longer than the original engine oil in the 4S shop, and the maintenance of several times a year saves a lot of man-hours.

It can be improved by slightly burning the engine oil and changing it to high-end engine oil, so you don't have to worry about it.

Causes of burning engine oil.

The engine oil itself has a certain amount of consumption, and excessive consumption is the problem of burning engine oil. There are many factors that affect the burning of engine oil, such as: fuel quality, driving conditions, driving habits, maintenance habits, etc., the following reasons will aggravate the oil consumption and cause the burning of engine oil, so that the vehicle appears:

1. Carbon deposition occurs in the combustion chamber, which makes the gas ring of the piston ring stuck, and the sealing is poor.

2. Oil sludge is generated in the lubrication system, and the oil sludge blocks the oil return hole of the oil ring and weakens the oil scraping performance.

3. Wear occurs between the piston and the cylinder wall.

4. The valve seal is corroded and aging, and the sealing performance fails. Demolition.

In addition, cars now have crankcase ventilation systems (exhaust valves), which can also exacerbate oil consumption if there is a problem.

Precautionary measures for burning engine oil:

1. Use high-quality engine oil

Engine oil is very easy to corrode and age in a long-term high temperature state, resulting in the oil film becoming thinner, and it is easier to escape to the combustion chamber to participate in combustion, so the use of high-quality engine oil can greatly delay this phenomenon.

2. Pay attention to the cleanliness of the oil circuit

Fuel in the combustion process is indispensable to produce carbon deposits, and carbon deposits are the root cause of some car failures, such as the aging of valve seals, piston cylinder wall clearance, etc., are directly or indirectly related to the formation of carbon deposits, considering the relationship between domestic oil products, it is necessary to use high-quality engine oil and (PNF) fuel additives to achieve, which is also the key to achieve the problem of burning engine oil without dismantling and repairing.

Generally speaking, there are two parts of burning engine oil: one part is the cylinder block and the other is the cylinder head.

There are also several situations of cylinder block oil burning: one is excessive wear of the cylinder barrel, and the other is excessive piston wear or piston ring failure. When the cylinder barrel is worn too much and a "table" is formed at the dead center of the piston, and the cylinder barrel is worn unevenly, and the driving cone or elliptical is formed, the oil replaced by the piston coarse ring will accumulate and participate in combustion; When the piston is worn too much or the piston ring loses its elasticity after long-term use, the seal is not tight, and too much oil is brought into the combustion chamber to participate in the combustion, which will also form oil burning.

The cylinder head burns oil because the valve guide is worn and the gap is formed, the oil leaks into the combustion chamber and/or the valve oil seal is aging, and the sealing degree decreases, resulting in the oil extending the valve and flowing into the combustion chamber.

When the engine oil is slight, you can roughly judge the fault location by observing the exhaust: if the engine oil is burned when the car is cool, it is most likely the valve oil seal, and if the car is hot and the oil is burned, it is most likely the piston or piston ring.

When the oil burning is serious, it is difficult to judge whether the cylinder block or the cylinder head burns the oil, the engine must be disassembled for inspection, and sometimes the piston must be poked out of the cylinder barrel in a stupid way, and the roundness and taper of the cylinder barrel are measured with an inner diameter micrometer to judge.

Resolution. The most fundamental way to solve the problem of burning engine oil is definitely to disassemble and repair and replace the worn parts.

There are probably the following possibilities: 1. The cylinder liner is seriously worn, which makes the gap between the piston and the piston ring and the cylinder liner silver chain too large, and the seal is not tight, resulting in oil combustion. 2. It may be that the oil seal of the front valve on the cylinder head is aging, which causes the oil to enter the combustion chamber and cause the oil to burn.

As for the method of repairing the ground, it depends more on why it burns. In the first case, it is necessary to replace the cylinder liners, pistons, piston rings, etc., which is the so-called overhaul. The second case is to replace the valve oil seal on the cylinder head.

The engine burns oil for the following reasons:

1. Poor valve sealing: The valve is to prevent oil leakage into the combustion chamber, but with the increase of service life, there will be wear and aging, which makes the valve seal poor, so that the oil is easy to enter the combustion chamber.

2. The piston gap becomes larger: often long-term operation, there will be carbon deposition in the piston part, and there will also be a certain degree of wear, with the growth of time, the piston gap continues to increase, and the oil is easier to enter the combustion chamber, which is also often said that after the vehicle is used for a long time, it is necessary to replace the higher viscosity oil.

3. The viscosity of the engine oil is too small: if the viscosity of the engine oil is too small, the phenomenon of burning the engine oil will also occur. The viscosity of the engine oil is too small, it has good fluidity, and it is easy to penetrate into the cylinder, and then participate in combustion.

4. Excessive oil volume: If the oil pressure is too large, part of the oil will be pressed into the cylinder, resulting in the phenomenon of burning oil. , the solution of burning oil in the car engine:

Repair the engine, remove carbon deposits from the engine, and replace damaged parts. If the condition is more severe, the engine needs to be overhauled.

What is the reason for burning engine oil in a car.

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

First, natural wear and tear. As the mileage of the car increases, the wear between the piston and the cylinder gradually increases. When wear increases to a certain level, the cylinder will start to leak, and oil will burn. When the valve oil seal is damaged, the burning of oil becomes more noticeable.

The second is improper maintenance. 1.Maintaining the engine according to the stated mileage will extend the life of the engine.

Conversely, even if the mileage is exceeded, there is no guarantee (i.e., delayed warranty). If the oil is too dirty, impurities in the oil can accelerate engine cylinder wear. 2.

Too much oil is added. 3.Improper selection of air filters, engine filters, engine oil, etc.

The gas impurities entering the cylinder are not well purified, and all kinds of dust particles enter the cylinder, which accelerates the wear of the cylinder. The quality of the filter element is poor and does not function as a magazine in the filter oil. Counterfeit oil or mismatch between the oil used and the oil level of the vehicle being used will result in a poor oil film forming on the friction surface of the engine, which may lead to cylinder pulling or channeling.

4.Ignition too early or too late. Sooner or later, there will be a sudden shock that will raise the temperature of the engine.

In severe cases, the piston will fall off and the cylinder will be scrapped. In its initial phase, there will be serious air leaks and oil burning in the cylinder block. 5.

There is too much dirt in the tank of the cooling system. And the radiator condenser is too dirty, which reduces the ventilation and heat dissipation capacity and increases the normal operating 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.

To sum up, with the increase of vehicle mileage, in addition to air leakage and oil burning caused by natural wear and tear, active maintenance and reasonable use of the vehicle can avoid the early arrival of cylinder leakage and prolong the service life of the car.

The core reason for burning oil:

1.Domestic oil products and road conditions are prone to carbon accumulation (the root cause of automobile problems).

2.Carbon deposition causes the piston ring to jam and lose oil scraping performance; The oil return hole is blocked, and the oil cannot return to the crankcase normally;

3.Excessive wear and clearance between the cylinder wall and the piston.

4.Oil leakage caused by corrosion and aging of valve oil seals and crankshaft oil seals;

The problem of burning oil is not formed in a day, but is related to the usual driving habits, oil use and maintenance. Burning engine oil doesn't require major repairs, let alone car damage. If the repair technique is not good, there will be a lot of problems later.

It can be used in the method of not dismantling or repairing, and the German Marty can solve the problem of burning engine oil without dismantling or repairing. Starting from the core cause of oil burning, the problem of burning oil can be solved by driving 5,000-10,000 kilometers through step-by-step operation.

Oil burning is a problem that we usually encounter when driving. Today, I will give you a detailed explanation of the causes and countermeasures of engine oil burning.