When i drive my car the exhaust smokes very bad its like fog when i look in the mirror i use the car daily and i had no problems before its a low mileage engine now i cant use it for work what could be wrong with it.

tom, October 2009

Petrol or diesel?
What colour is the smoke, white, blue or black?
Is the engine starting and running OK?
Are you having to top up the engine oil or coolant regularly (assuming you know how to, and have been, checking them regularly)?
Has the MPG got worse?
When was the car last serviced?

vaux, October 2009