Excuse me, why does the car burn oil? See the supplementary question for details. . .

Most of them are caused by the piston being stuck.

Carbon deposit will be deposited in the groove of the piston, which will cause the piston ring to stick together and cause the piston ring to be stuck and unable to seal completely. A "stuck" piston ring will greatly reduce the oil scraping sealing ability. In addition, sludge will also block the oil return hole, and the oil will not flow back normally, resulting in an increase in fuel consumption. Carbon deposition will aggravate the wear between the piston and the cylinder wall, resulting in excessive clearance, which will lead to the oil entering the combustion chamber. The valve oil seal is corroded and aged, and the seal is not tight. It can be said that the valve oil seal is the most vulnerable part of the engine, and this problem basically exists in cars that have traveled more than 654.38+ 10,000 kilometers. The front and rear crankshaft oil seals are aging, and the front and rear crankshaft oil seals are in continuous contact with oil in a large area. Impurities in the engine oil and continuous temperature changes in the engine gradually weaken the sealing effect, leading to oil leakage or oil leakage.

Precautionary measures for fuel:

1. Use high-quality engine oil:

The oil is easy to corrode and age at high temperature for a long time, which leads to the thinning of oil film and easy to escape to the combustion chamber to participate in combustion. Therefore, using high-quality engine oil can greatly delay this phenomenon.

2. Pay attention to the cleanliness of the fuel circuit:

Carbon deposition is inevitable in the combustion process of fuel, which is the root cause of some automobile faults, such as aging of valve oil seal and widening gap between piston and cylinder wall. All these are directly or indirectly related to the formation of carbon deposits. Therefore, keeping the oil circuit clean is of great help to prevent engine oil from burning. Of course, this requires the help of high-quality (PNF) fuel additives.