Since the engine is the "heart" of the car, what are the main car's "hearts" for car maintenance? The auto repair experts suggest to do the following six aspects.

1. Use a lubricant of the appropriate quality grade. For gasoline engines, SD-SF grade gasoline engine oil diesel engine should be selected according to the mechanical load according to the attachment and use conditions of the intake and exhaust system.

For B-CD diesel engine oil, the selection criteria shall not be lower than the requirements specified by the manufacturer.

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, the oil should be changed regularly in combination with the conditions of use, and the oil volume should be 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 gas, 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.


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