So, I got home today with a check engine light. Code was P0305, misfire on cylinder 5. Looked into it and noticed water level was low (I topped it off less than a week ago) and white vapor and water droplets coming from exhaust. Checked the oil, but it's not milky. Still I feel that it is a blown head gasket though. Also, mpg seems to have been terrible for the past few weeks. Just wanna see if I'm on the right track as well as how much it has cost for others to have it fixed.