Lubricating oil overwear reasons and prevention methods

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Lubricating oil overwear reasons and prevention methods

When we use the car in our daily life, there will be so a phenomenon that the oil will be more or less depleted after a period of time, and some even appear to be over-depleted. What is the reason for this? In fact, a small amount of oil loss in the use of the process is normal, if the loss of large amounts, it is necessary to carefully find out the reasons, otherwise it will cause the engine overheating and powerlessness, power loss, wear and tear of internal parts of the engine and other issues.

Engine speed is too high

The first phenomenon of manual cars is the most serious, the reason is that the engine speed is too high, low gear matching high-speed driving problems, in fact, it is also very good to solve this problem, is to pay attention to the use of the car when the gear change. 1 gear is the start; 2 gear corresponding to the speed of 5-20 km / h; 3 gear corresponding to the speed of 20-40 km / h; 4 gear corresponding to the speed of 40-60 km / h; 5 gear corresponding to the speed of 5-20 km / h; 4 gear corresponding to the speed of 40-60 km / h; 4 gear corresponding to the speed of 5-20 km / h; 5 gear corresponding to the speed of 5-20 km / h. h; 5th gear corresponds to a speed of 60-100km/h, or the maximum speed. As long as in this range can ensure that the engine speed is not abnormally high.

Excessive piston cylinder gap

The second phenomenon is that the gap between the piston and the cylinder is too large, or the piston ring is seriously damaged, the elasticity is insufficient, the piston ring end gap, side gap, backlash is too large, so that the oil fled into the combustion chamber, or the oil leakage of the oil sump, the crankshaft back half of the sealing is bad, seepage and leakage of oil, in addition to the use of the operation is bad and the improper use of oil, will also cause excessive oil depletion.

Wrong choice of oil viscosity

The third phenomenon is the improper selection of motor oil, summer selection of winter oil. Or choose a viscosity level that does not match the car, generally speaking, the viscosity used in German cars is greater than that of Japanese cars. For example, 5W-40 is suitable for German cars and other SUVs; 5W-30 is suitable for the United States, Japan and South Korea; 5W-20 is suitable for Japanese; 5W-30 and 5W-20 plus the majority of Audi will quickly become diluted burning oil, etc.; 5W-40 to join the Japan, South Korea and the United States of America, the resistance will become greater. Selection of the correct viscosity of the oil will be able to solve the problem of excessive oil consumption.

The fourth phenomenon is the cylinder, piston, piston ring problems, resulting in reduced oil utilization, resulting in waste, excessive oil loss. This problem can only be solved by replacing the cylinder, piston, piston ring and other parts.

In addition, there are many reasons that may cause excessive oil consumption, such as engine work at high speed for a long time, whether there is oil leakage from the engine bonding surface, the oil is added too much, more than the upper limit, the oil level is too high and other issues, there may be more than one reason for the excessive consumption of oil, if you can't determine the reason for it, it is recommended to go to the garage in a timely manner to carry out inspections, to rule out the emergence of the problem of oil consumption.