Correct Use of Engine Oil is a Key Factor in Engine Maintenance

1. Use engine oil of appropriate quality grade, which is the key to ensure the normal operation of the engine.

2. For temporary substitute oils, strengthen observation. When oil cannot be supplied in time or there is no suitable oil, substitute oil can be used temporarily. However, during use, it is necessary to strengthen observation, pay attention to the quality of the oil and whether the oil filter is blocked, and stop the engine in time if problems are found.

3. When choosing oil with appropriate viscosity, choose oil with appropriate viscosity according to local temperature. It is wrong to think that the higher the viscosity, the better. Due to the high viscosity at the beginning of startup, the oil flows slowly, which is easy to aggravate the wear of parts and even cause tile burning accidents.

4. Drain the waste oil when changing the oil. In order to extend the service life of the engine, drain the old oil when changing the oil to avoid contaminating the newly added oil, causing the new oil to deteriorate rapidly and the engine to corrode and wear. Generally, the waste engine oil is drained at high temperature, and then washing oil (85% ordinary engine oil and 15% gasoline mixture) is added. After starting, it is idled for 10 minutes, drained, and finally clean new engine oil is added.

5. Keep the crankcase well ventilated. The gas flowing into the crankcase from the combustion chamber is corrosive, which will oxidize and deteriorate the engine oil and pollute the engine. Therefore, the crankcase should be kept well ventilated.

6. Maintain the normal oil level. When the oil is insufficient, it will not only accelerate the deterioration of the oil, but also cause the parts to burn due to lack of oil; on the contrary, if there is too much oil, the oil will rush into the combustion chamber along the gap between the cylinder wall and the piston ring, causing the engine to burn oil. In addition, if the oil level is too high, the stirring resistance of the engine oil is increased, the fuel consumption is increased, and the wear is aggravated.

7. Regularly maintain the engine oil filter, regularly check and maintain each engine oil filter, and replace the filter element in time. The driver should be aware of this.

8. Change the engine oil regularly or depending on the quality. For any quality of engine oil, after a certain mileage, some physical and chemical indicators will change, causing harm to the engine and causing failures. Therefore, the quality of the oil should be changed regularly according to the law of oil changes.

9. When using thickened engine oil, its oil pressure is slightly lower than that of the same brand of general engine oil. Since thickened oil has good viscosity-temperature characteristics, it has high viscosity at high temperatures and low viscosity at low temperatures. Within the normal temperature range of the engine, the viscosity is slightly lower, so it is normal for the pressure to be slightly lower.

10. When using general engine oil all year round or using thickened engine oil in winter, ordinary engine oil must not be added to avoid affecting the low-temperature starting performance; ordinary engine oil can be gradually added when the spring or ordinary engine oil is replaced.