Ive had my car for probably 6 weeks or so now, and the entire time it has this intermittant fuel/oil smell inside the cabin. It does not seem to matter whether i drive it hard or soft, and the smell is not always there. It does not seem to matter where the aircon is on or not, or if the windows are up or down. Sometimes when you can smell it its stronger than other times. It annoys the shit out of my girlfriend and it is annoying when it happens and surely should not be normal.
The car recently underwent a full service, but i forgot to mention it too them. It did have an oil leak before which seems to have been resolved during the service. But the smell intermitantly continues, just as before.
To be honest, im at a loss. It doesnt happen all the time and i've yet to work out a pattern of what causes it.