Anyone have the problem of gas fumes entering the interior of the car when sunroof or another window is open? When windows are shut, fumes are not a problem. I think having a window down creates some kind of backdraft into the cockpit. Any idea what might be causing this problem? Evidently, this has been occuring for previous 8 years and mechanics have not been able to figure out where it is coming from. Fumes are in the trunk as well, but odor is different... A little sweeter -- maybe the leveling oil that has been removed spilled out at one time?