So I decided to finally change my fuel filter on my 04 grand prix. After jacking up the car and getting under there I see that the fitting going into the filter is partially rounded off and I can't get my fuel line wrench on it. Does anybody have any tips or tricks to getting this off? I don't want to round it off more by using a regular open end wrench, definitely don't want to put some vice grips on it if I don't have to.