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Since the engine is the "heart" of the car, what are the major aspects of car maintenance? Auto repair experts recommend doing it from the following seven aspects.
1. Use a lubricant of the appropriate quality grade. For gasoline engines, SD-SF grade gasoline engine oil should be selected according to the attachment and use conditions of the intake and exhaust systems; the diesel engine must use CB-CD grade diesel engine oil according to the mechanical load. The selection criteria should not be lower than the manufacturer's requirements. .
2. Regularly change the oil and filter element. The oil quality of any quality grade lubricating oil will change during use. In order to avoid the occurrence of failure, it is necessary to change oil regularly in combination with the conditions of use, and make the oil amount moderate.
3. Keep the crankcase well ventilated. Most petrol engines now have a PCV valve, but contaminants in the helium gas can be deposited around the PCV valve, which can cause the valve to clog. Therefore, the contaminants around the PCV valve must be regularly removed.
4. Clean the crankcase regularly. During the operation of the engine, the high-pressure unburned gases, acid, moisture, sulfur and nitrogen oxides in the combustion chamber enter the crankcase through the gap between the piston ring and the cylinder wall and mix with the metal powder produced by the wear of the components. Sludge. Therefore, the crankcase should be cleaned periodically to keep the interior of the engine clean.
5. Regularly clean the fuel system and control the formation of coke to keep the engine in top condition.
6. Engine tank rust and scaling are the most common problems. The rust and scale can limit the flow in the coolant cooling system, reduce heat dissipation, cause the engine to overheat, and even cause engine damage. Therefore, clean the tank regularly to remove rust and scale.
7. Maintenance three filters: Three filters refer to air filters, oil filters, and fuel filters. The third filter acts as a filter for air, oil, and gasoline on the engine of the car, thereby protecting the engine and improving the efficiency of the engine.