4. Use lubricating oil of appropriate quality grade. For gasoline engines, SD-SF grade gasoline engine oil should be selected according to the additional devices and operating conditions of the intake and exhaust system; for diesel engines, CB-CD grade diesel engine oil should be selected according to the mechanical load, and the selection standard shall not be lower than the manufacturer’s requirements. .
5. The engine water tank is rusty. Scaling is the most common problem. Rust and scale will restrict the flow of coolant in the cooling system, reduce heat dissipation, cause the engine to overheat, and even cause engine damage. Therefore, the water tank should be cleaned regularly to remove rust and scale.
6. Maintain the three filters. Three filters refer to air filters, oil filters and gasoline filters. The three filters play a role in filtering air, oil and gasoline on the car engine, thereby protecting the engine and improving the working efficiency of the engine at the same time.
7. Regularly clean the fuel system and control the formation of carbon deposits, which can keep the engine in its best condition.
