Is the Engine as Good as New After an Overhaul?

[VanStephanie]

After an overhaul, the engine is not as good as new, and its performance will deteriorate. The maintenance methods for an engine include: 1. Regularly changing the engine oil and oil filter; 2. Using lubricating oil of appropriate quality grade; 3. Regularly cleaning the radiator; 4. Maintaining the three filters; 5. Keeping the crankcase ventilated; 6. Regularly cleaning the crankcase; 7. Regularly cleaning the fuel system. The cleaning method for an engine is: 1. Park the vehicle in a dust-free place after turning off the engine; 2. Use compressed air or a vacuum cleaner to blow the engine; 3. Wipe off the dust with a semi-dry cloth; 4. Open the engine hood to let it dry.