汽车出现烧机油的原因
Causes of oil burning in cars
1.由于国内燃油品质与标准不同步，使得发动机行驶过程中，非常容易在燃烧室内形成大量积碳，积碳则是引发烧机油等发动机各类问题的重要原因。
1. Because the domestic fuel quality is not synchronized with the international standards, it is very easy to form a large amount of carbon deposit in the combustion chamber during engine driving, which is an important reason for various engine problems such as engine oil.
2.积碳会沉积在活塞的凹槽内，导致活塞环粘在一起，活塞环卡死无法密封，机油会因此进入燃烧室烧掉，刮油密封能力下降，未被刮掉的机油也会被烧掉。
2. Carbon deposit will deposit in the groove of the piston, causing the piston rings to stick together, and the piston rings will be stuck and cannot be sealed. Therefore, the oil will enter the combustion chamber and burn off, the oil scraping and sealing ability will be reduced, and the oil that has not been scraped off will also be burned off.
3.长期形成的油泥得不到清理，堵塞活塞环上的回油孔，导致机油无法正常回流，使机油留在燃烧室里燃烧了。
3. The oil sludge formed for a long time cannot be cleaned, blocking the oil return hole on the piston ring, resulting in the failure of normal oil return, leaving the oil in the combustion chamber for combustion.
4.积碳加剧活塞与气缸壁之间的磨损，造成间隙过大，导致机油进入燃烧室烧掉。
4. Carbon deposition intensifies the wear between the piston and the cylinder wall, resulting in excessive clearance, resulting in oil entering the combustion chamber and burning.
5.气门油封腐蚀老化，造成密封不严，机油会因此漏入燃烧室烧掉。气门油封可以说是发动机里很容易老化的易损件，基本上行驶了10万公里以上的汽车，都有此问题。
5. The valve oil seal is corroded and aged, resulting in loose sealing, so the oil will leak into the combustion chamber and burn off. Valve oil seal can be said to be a vulnerable part in the engine that is easy to age. Basically, cars that have driven more than 100000 kilometers have this problem.
6.前后曲轴油封老化，前后曲轴油封与油大面积且持续接触，油的杂质和发动机内持续温度变化使其密封效果逐渐减弱，一是会造成渗油或漏油，机油消耗增加；二是机油蒸汽也会在高压的作用下在密封薄弱处溢出，造成机油损耗。
6. The front and rear crankshaft oil seals are aging. The front and rear crankshaft oil seals are in large-area and continuous contact with the oil. The sealing effect is gradually weakened by the impurities of the oil and the continuous temperature change in the engine. First, it will cause oil leakage or oil leakage and increase the oil consumption; Second, the oil vapor will also overflow at the weak seal under the action of high pressure, resulting in oil loss.
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