Analysis of the Replacement of Automotive Lubricants in Different Conditions

Lubrication of engine oils will deteriorate gradually during use, and new oils need to be replaced. Determining a reasonable oil change period is a very important and complex issue. To change the oil prematurely will cause the waste of lubricating oil; if the oil is changed too late, the performance of the engine will be deteriorated and the service life of the engine will be reduced. Strictly speaking, when the oil change should be based on analysis of physical and chemical indicators of lubricating oil, such as viscosity, acid value, alkali, moisture, insoluble matter, etc. to determine, that is, the implementation of quality oil change.

Under normal operating conditions, replacing lubricants with a cycle of 5000 km will inevitably result in the waste of lubricants. Therefore, it is important to determine how to change the oil drain cycle reasonably and simply.

1) In the case of poor operating conditions such as construction machinery, replace it within a short period of time.

2) During the initial period of engine running-in, the new car and the after-service running-in period after long-term use, the replacement period is 1/2 or less of the normal case.

3) When the lubricating oil consumption is large, the new oil is replenished, and the fuel gas pollution is serious, it should be replaced on time.

4) Running long-distance running The urban area runs on the expressway, and long-distance running cars and high-speed running cars can extend the replacement period.

5) When a car starts and stops frequently, due to fuel dilution, moisture content, etc., if the lubricating oil is seriously polluted, the replacement period should be shortened.

6) Road dusty sandstone Lubricants on gravel roads are easily contaminated with dust and the replacement period should be shortened. In particular, the replacement period should be shortened by half on roads with many traffic vehicles and poor sand quality.

7) When driving on a hillside, there are many situations where low gears are used to shorten the replacement period.