So I was at Advanced Auto Parts the other day picking up some stuff for my fiancé's neon and they offered me some Sea Foam and I quickly declined. Last night at work I was curious so I looked it up and decided I would try it, I put it in my oil and in my fuel but I was curious. On the can it says you can put it directly in the engine thought the manifold and such. So is that bad for it at all, does it really clean it out, and if I should do it, what should I use? the brake boost line?