Had a couple of questions about changing the oil in my Fusion this weekend. First of all. How many quarts does it take? I didnt see it in the owners manual so I guessed and bought 5qts, is that right? Secondly, the owners manual claims I'm supposed to change some O-rings? I have never had a car that need to change rings on the oil pan bolt every time I changed the oil. Is the bolt the only one that gets changed? Or is there one on the filter too? Also, where do I purchase these? Thanks in advance!