hey guys. im quite dumbfounded as to how i can be getting a ridiculous 12 liters to 100's out of my 2 liter golf at the moment, surely i should be getting better than that out of it. its not what you would call city driving but it is in the burbs.

it does smell like it is running rich occasionally and im about to go in for a service.

any advise on whats going on and maybe what i should ask at the mechanics when i go in?