Why do German cars burn engine oil? Recently, some people always say that German cars such as Volkswagen have burned oil, while others think that it is not a burning oil, but the oil consumption is large.Who in the end ...
Why does German car burn oil?
Why do German cars burn engine oil? Recently, some people always say that German cars such as Volkswagen have engine oil, while others think that it is not a burning oil, but the oil consumption is large.Who is more accurate?
First of all, the phenomenon of oil -burning oil such as Volkswagen and other European vehicles is not the technical quality of the engine, but is caused by the characteristics of the engine itself.
The engine air cylinder walls of these models appear under a mesh under a microscope (generally it feels smooth). These small mesh can save trace oil, so the piston will run up and down in the cylinder.The lubrication performance is better, and the wear between the piston ring and the cylinder wall is minimized.
In addition, the piston ring of Volkswagen and other models is stronger, and the depth of tension is weaker than Japanese cars. Such matching naturally reduces the wear caused by the cylinder wall.The wear is much smaller than other models, and the engine can still maintain a good working state (mainly referring to the cylinder pressure).
So why is the oil burning? Due to the downside of the piston (ignition and blasting), the oil remaining oil in the small mesh of the cylinder wall will also be burned.The design form of this engine cylinder is used in European countries. It is much less useful than used in my country. The reason is that the roads in European countries are better and have a high speed. Under high speed conditions, the engine oil in the mesh is less oil in the mesh. , Burning less.
The highest speed of my countrys highway is 120 kilometers per hour, and most vehicles in our country are driving in the city. The speed of the urban area is 40 km/hour. The red light is waiting, the engine is too much time in idle, and such an engine working environment causes more motor oil to stay in the cylinder mesh, and there will be more oil to burn.However, from the technical analysis, such a burning oil is an effective protection of the engine cylinder wall.
At present, the best solution for German cars to burn oil is to make appropriate supplements when the oil consumption is consumed to a certain extent, or the mileage of the original oil replacement is appropriately shortened.When smoother, the amount of oil burning oil will become less and less.
It is understood that the current standard of German car brands is that the consumption oil per thousand kilometers is less than 0.7 liters.However, I found in the instruction manual of some Japanese cars (including the Lexus RX350) that the maximum consumption of the oil marked oil was 1 liter per thousand kilometers.

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