What Causes White Smoke from a Car Engine?

[WyattLynn]

Engine emits white smoke due to the following reasons: 1. Insufficient temperature: When the engine temperature is too low, part of the fuel-air mixture injected into the cylinders fails to combust, resulting in white smoke from the exhaust pipe. Therefore, after starting the engine, pay attention to maintaining the radiator's temperature by operating at medium throttle until the engine temperature reaches above 50°C before gradually increasing the load. 2. Water in diesel fuel: The presence of water in diesel directly affects the normal combustion of the air-fuel mixture, causing white smoke. In this case, drain the sediment from the fuel tank, remove any accumulated water, and replace the diesel if necessary.