I am curious about something that i dont think is a big deal, but i would just like to hear from someone else that actually would know how it works....I bought a bottle of fuel injector cleaner to put in my gas tank. I unscrewed the plastic lid and underneath the lid was a little thin metal seal. Because the bottle was under pressure, as soon as i touched the seal it poped open. I then poured it in my gas tank and now i realized that the little metal seal got dumped into the tank!! It is the same kind of seal that is on a huggie drink container only about half the diameter. Of course nothing went wrong as far as the engine running, but where does the seal sit in the tank and would it end up blocking a fuel line? Let me know what u think.