AutoTalkShowIn recent years, car burning oil problems are becoming more common. And for some brands, burning oil seems to have become a common phenomenon. For the online burning oil Tucao, users will be even more "Congratulations to buy a genuine" as the ridicule. It seems as long as the burning oil is not very serious, it is an acceptable phenomenon.
Most owners believe that the vehicle in normal use period, the phenomenon of oil consumption is not burning oil, it is acceptable. Even some expensive luxury car owners also recognized this phenomenon. According to some enterprises to answer the depot declared: a certain amount of oil consumption is normal!
However, this phenomenon in the end of normal oil consumption is not normal? For purposes like BMW, Audi of these brands, their official rhetoric is often: every 1,000 to 1,200 km mileage, oil consumption in 1L is reasonable.
Many other brands also claimed that a certain amount of oil consumption is reasonable, but for serious acts of burning oil, has a different definition. So manufacturers rhetoric fly it?
Recently, the authority of the US media, "Consumer Reports" to stand up to fight the major automobile manufacturers in the face! United States, "Consumer Reports" is an authoritative media, also served in the previous "travel 30w km, these cars enough for 20 years! ", A range of children has also been quoted," Consumer Reports' findings.
United States, "Consumer Reports" is a do not rely on advertising to survive the media, the main income comes from membership income, so its content is to serve the members, that is, consumers, authoritative and credible. And this abnormal authoritative media for burning oil firm attitude: burning oil phenomenon is unacceptable!
Why would a vehicle burning oil
"Burning oil" means oil into the engine's combustion chamber, mixing with the gas involved in the combustion together. Comprehensive maintenance experience and vehicle characteristics, causes burning oil can be broadly summarized as follows:
1, the domestic and international fuel quality standards are not synchronized, so that the engine driving the process, can easily form a large amount of carbon deposits in the combustion chamber, carbon is the root of all kinds caused by engine problems.
2, carbon will be deposited in the recess of the piston, causing the piston ring sticking together, which leads to stuck piston rings can not be completely sealed, "sticks" in the oil scraping piston ring is greatly reduced sealing capability Further, sludge will jam back to the hole, the oil can not reflow correctly, resulting in increased oil consumption.
3, carbon exacerbate the wear between the piston and the cylinder wall, causing the gap is too large, causing oil to enter the combustion chamber.
4, valve seal aging corrosion, resulting in poor sealing, valve seals can be said that the most vulnerable parts of the engine easy to aging, basically traveled more than 100,000 km of car, have this problem.
5, before and after aging crankshaft oil seal, the front and rear crankshaft oil seal and the oil continuous contact a large area for the oil and impurities, temperature changes within the engine so that the seal effect gradually weakened, leading to oil leakage or leakage.
6, damage oil seals between the turbocharger and the intake pipe, the main reason is because the oil change period is too long or the use of low-grade oil, resulting in a floating main shaft of the turbine to lack of lubrication and cooling, and further damage the oil seal.
7, a high proportion of the oil present in the fuel, the fuel supply system working poor, poor fuel atomization, makes a large amount of fuel or fuel mixture fleeing mixed too thick crankcase oil, diluted oil.
8, air filter plugging, cause poor intake, the intake pressure decrease, a negative pressure so that the oil into the combustion chamber to cause oil burning in the case of negative pressure.
9, the oil filter plugging, resulting in increased oil consumption.
10, the exhaust valve (the oil separator, positive crankcase ventilation valve PVC valve) blocked or damaged, will follow the air mixture after solidification where the exhaust gas recirculation pipe into the intake passage, resulting in oil consumption.
11, piston rings the wrong equipment, counterparts, but this situation is rare, less likely to occur.
12, Tim excess oil injection, exceeding the upper limit of the scale.
13, the throttle dirty.
As can be seen from the above, the reasons are complex burning oil, which is burning oil industry has become an important cause of problems. However, the above reasons, some judgment and is easy to solve, such as adding an excess of oil injection, air filters, filter, exhaust valves (oil separator, PVC valve) is damaged, dirty throttle, a substantially any garages can be resolved, simple to operate. However, the condition of the exhaust valve can not be ignored, should be carefully examined, any questions, please be addressed immediately.
Screening method of burning oil
1, cool car burning oil: Every morning for the first time with the car, the rear exhaust pipe will be relatively thick blue exhaust smoke. Blue smoke disappear over a period of time, usually the same day a similar situation will not happen.
Situ or after step on the accelerator pedal to the metal with the car, where a large number of blue smoke discharged from the exhaust pipe while the vehicle driver when the driver is serious when the vehicle travels Meng fuel door: 2, acceleration burning oil the driver can see the mirror blue smoke from the exhaust pipe side.
To the service station to the oil filter after 3, there will be "burning oil" phenomenon of the car filled with oil, so that owners traveling 1000 kilometers weighed and then filled with oil, let owners travel 1000 km. So repeated three times to obtain an average, normal consumption of oil after running-in period is generally up to 1000 km /0.3 liters, if exceeded, the situation is the presence of burning oil.
Prevention of burning oil
While burning oil to solve the problem it is very complicated, but it is early prevention through certain measures:
1, the use of high-quality oil: oil is highly corrosive aging at a high temperature for a long time, resulting in oil film thinning, he went to more easily participate in the combustion chamber burning, the use of high-quality oil can greatly slow down this phenomenon.
2, pay attention to the clean fuel oil: essential fuel in the combustion process will produce coke, and coke is caused by some of the causes of car trouble, such as valve seals of aging, the piston cylinder wall clearance is increased and so on, all with the formation of carbon has a direct or indirect relationship, so to keep clean fuel oil for the prevention of burning oil has a lot of help, of course, need the help of a high-quality fuel additive.
3, external aid: As already mentioned, the degree of aging fuel oil and clean oil is basically decided the key to the prevention of burning oil is located, then given the current domestic oil relationship, we need the help of high-quality oil and fuel additives to achieve, and this is the key to achieve the split-free repair to solve the burning oil.