What is the reason why diesel Volford engines burn oil

The gap between the piston rings is large and the valve seals are aging.

Causes of oil burning in Volvo diesel engines and how to prevent them.

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 decayed, corroded, aged, and the sealing performance fails.

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

Burning engine oil means that the engine oil enters the combustion chamber of the engine and participates in the combustion along with the mixture. The phenomenon of "burning engine oil" in the vehicle will damage the vehicle's oxygen sensor too quickly, resulting in an increase in carbon deposition in the combustion chamber, unstable idling, weak acceleration, increased fuel consumption, and excessive exhaust emissions.

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 old fuel 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 achieving no dismantling and repairing to solve the problem of burning engine oil.

Hello, according to the problem you described and our experience in repairing vehicles, the reasons for burning engine oil in vehicles are: serious wear of piston rings, poor sealing of the cover valve oil seal, damage to the cylinder gasket, damage to the exhaust valve, etc., it is recommended that you go to the repair shop in time to check the cause of burning the engine oil, and eliminate the fault as soon as possible [There is a problem with the car, ask the car master. 4S shop letter technician, 10 minutes to solve. 】

Hello. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Volvo's burning engine oil is basically caused by piston ring stagnation. Changing the maintenance of high-viscosity engine oil is only an expedient measure to treat the symptoms rather than the root cause, and it will do more harm than good.

The poor power and high fuel consumption of the engine are 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 can also clog the fuel injector, resulting in poor atomization effect, poor combustion, cylinder wall strain, and even cylinder bursting, and finally the engine can only be dismantled for overhaul.

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. Moreover, it is possible to burn the engine oil again after tens of thousands of banquet kilometers, and it is unsustainable to overhaul the engine in Nianxiang Zhongzai Mountain.

Now the no-dismantling 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 burning engine oil and having to go to the auto repair shop for overhaul, without removing a screw, repairing and releasing the piston ring stuck engine oil while driving, with remarkable results.

The reasons for Volvo burning engine oil are: 1. The use of engine oil with poor quality or viscosity grade does not meet the requirements; 2. The fitting gap between the piston ring and the cylinder wall is too large, and the piston ring is improperly installed or the sealing is poor; 3. Excessive oil filling; 4. Oil leakage from the turbocharger pulse. Take the 2019 Volvo V40 as an example, its chassis body structure is a five-door five-seater hatchback, and the body dimensions are:

Length 4370mm, width 1802mm, height 1439mm, wheelbase of 2647mm, fuel tank volume of 62L, curb weight for Volvo V40 car front suspension form is MacPherson independent suspension, rear suspension form is multi-link independent suspension, equipped with a turbocharged engine, maximum horsepower is 152ps, maximum power is 112kw, maximum torque is 250Nm, matched with a 6-speed manual automatic transmission.

There are a lot, but there are commonalities, usually do not clean the oil circuit well to keep the dry section of the burning, so it is particularly easy to burn the oil.

In fact, the treatment principle of piston ring stagnation should start from the oil circuit, the reason for the stagnation is to start with the oil circuit, the oil bearing temperature is 110 degrees, and the oil circuit is not clean for a long time, resulting in the high temperature of the oak, 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. Soon all 4 cylinders were stuck, and it became 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.

Solution. Piston ring releasers using PNF technology can quickly solve the problem of burning oil caused by Volvo piston ring seizure.

Volvo's oil burning phenomenon should be much better than that of German cars, and there are fewer reports about Volvo burning engine oil;

In fact, burning engine oil is a normal phenomenon, and consumption within a reasonable range is not called burning engine oil; If the oil consumption reaches the lowest limit of the oil scale during the maintenance cycle, it is absolutely a big time to burn the engine oil;

Burning engine oil is not impossible to solve, and the problem of burning engine oil can be solved by means of engine overhaul, but the cost is relatively high, and it will also affect the use of the engine in the later stage;

The other is to solve the problem of engine oil burning by using better Saibeisa fully synthetic engine oil and passing the OEM certification of Volvo OEMs, because the engine oil itself has sealing, and a good and high-viscosity oil has better sealing performance, which can alleviate or solve the engine oil burning.

The main reasons for burning engine oil in diesel engines are as follows: 1. This is due to the piston ring, especially the wear of the oil ring or the piston ring counterpart, or the poor elasticity of the ring, the broken ring, and the piston ring is cemented in the ring groove and other reasons, the piston ring scraping effect is greatly reduced, so that the oil on the cylinder wall is channeled to the combustion chamber at the top of the piston, leading the jujube to burn the oil. 2. The diesel engine runs all the time under high temperature and high load, which will cause the wear of the piston ring and the cylinder liner, and cause the oil to burn when the cylinder is pulled.

In order to avoid the phenomenon of burning engine oil in the hall-clear diesel engine, the driver should do: (1) choose the right oil: choose the oil with high viscosity and low volatility, and try to choose the engine oil of large brand quality.

2) New car run-in requirements: car owners should drive carefully during the run-in period. Break-in is carried out according to the requirements of the break-in period.

3) Fuel quality must be qualified: The quality of oil is a major factor causing carbon deposition, and the quality must be guaranteed. (4) Regular maintenance, change the oil, oil filter on time, and replace the air filter in time.

The involvement of engine oil in combustion will not cause serious effects on the engine in the short term, as long as it is added less. However, it has a great impact on the ternary, and the mixture with engine oil will clog the ternary or the ternary will fail a little bit. Replacement costs are expensive.

German cars are mainly caused by the oil residue in the cylinder wall caused by the piston ring stagnation, and the phenomenon of less engine oil appears, commonly known as burning engine oil. It is also true that the engine oil is involved in the combustion.

However, long-term reliance on adding oil to continue the life of the engine, the harm is great, it is easy to lead to the scrapping of the engine, which is not advisable.

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 original liquid of the company to repair the oil to clean the oil circuit and the cylinder, and release the carbon deposits and filial oil sludge that are stuck in the piston ring by penetrating into the piston ring. Qingquietly for most of the piston rings do not have the right vehicle, as long as the piston ring is repaired, the release can be completed, the oil scraping function can be restored, and the phenomenon of burning engine oil can be improved.

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.