What Causes Smoke from a Car Engine?

[AddysonLynn]

Smoke from a car engine can be caused by: 1. Black smoke: This is due to incomplete fuel combustion, a dirty air filter, or malfunctioning spark plugs; 2. White smoke: This indicates water leakage between the engine cylinders and coolant passages; 3. Blue smoke: This is caused by using substandard engine oil or failing to change the engine oil for an extended period. The function of an engine is to convert the thermal energy of gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder, which expands the gas and pushes the pistons to perform work. Engine maintenance methods include: 1. Regularly changing the oil and oil filter; 2. Using lubricants of appropriate quality grades; 3. Periodically cleaning the radiator; 4. Regularly replacing the air filter, oil filter, and fuel filter; 5. Maintaining good crankcase ventilation and cleaning it periodically; 6. Regularly cleaning the fuel system.