One more thing regarding seafoam before I start doing it. Everyone seems to say 1/3 in the gas tank. The directions say one whole can or 1 oz per gallon. The car has 17 gallons. Should I listen to what everyone else says or what? Also as of right now I have a full tank, should I drive some of it off or go ahead and put it in?

There are only two types of people. There are idiots, and then there are the ones that are good at hiding the fact that they are idiots.