Originally Posted by
Oranoco
White = water
Blue = oil
Grey = fuel
You don't need a huge leak in the headgasket to make a fair bit of white smoke
It's steam not smoke, white smoke is oil, as is blue, it's just down to the way it's being burnt. Black smoke is overfuelling.
If it's not loosing any coolant, then it's not a HG!
Martin