to start this isnt my car im helping a friend.
he has an '02 nissan maxima with a 3.5 v6.
recently it started missing really bad, we checked it at an autozone they said it was the #5 cylinder misfiring, and to change the plugs, so we did only to find that the #5 cylinder is covered in oil, and its still misfiring. any ideas what this could be and how to fix it cheap as possible?