White smoke is not engine oil, because water enters the cylinder and becomes a lot of steam, so white smoke and blue smoke are engine oil; Especially when the car is just started, the temperature of the exhaust pipe and the exhaust pipe is not high, and when the water vapor is discharged from the cylinder, it will condense to form water mist, which is called white smoke. This is a normal phenomenon. Generally, an automobile engine will disappear after running for a few minutes.