The high probability is that the piston is stuck, causing oil burning
Carbon deposits will be deposited in the grooves of the piston, causing the piston rings to stick together. This will cause the piston rings to become stuck and unable to seal completely. , the "sticky" piston ring greatly reduces the oil scraping and sealing ability. In addition, the oil sludge will also block the oil return hole, and the oil cannot flow back normally, resulting in an increase in oil consumption. Carbon deposits will intensify the wear between the piston and the cylinder wall, causing the gap to be too large, causing oil to enter the combustion chamber. The valve oil seal corrodes and ages, resulting in loose sealing. The valve oil seal can be said to be the most vulnerable wearing part in the engine to age. Basically, cars that have driven more than 100,000 kilometers have this problem. The front and rear crankshaft oil seals are aging. The front and rear crankshaft oil seals are in large and continuous contact with oil. The impurities in the oil and the continuous temperature changes in the engine gradually weaken the sealing effect, resulting in oil leakage or oil leakage.
Preventive measures for burning engine oil:
1. Use high-quality engine oil:
Engine oil is easily corroded and aged under long-term high temperature conditions, causing the oil film to become thinner. It is easier to escape into the combustion chamber to participate in combustion, so using high-quality engine oil can greatly delay this phenomenon
2. Pay attention to the cleanliness of the fuel oil circuit:
Fuel must be burned during the combustion process. Carbon deposits are indispensable, and carbon deposits are the root cause of some automobile failures, such as the aging of valve oil seals, the increase in piston cylinder wall clearance, etc., all of which are directly or indirectly related to the formation of carbon deposits, so keep Cleaning the fuel oil circuit is of great help in preventing oil burning. Of course, this requires the help of high-quality (PNF type) fuel additives