Hey I flushed the radiator and added clean fresh 50/50 Prestone. this hasn't been done for at least 7 years. while fiddling around under the hood I found a plastic bottle with hose running to a splice that went to the manifold. Bottle said "National Fuel Savers Corp". I remember hearing about this several years ago and feel very certain that it is bogus. My question is can I remove and plug the line without any negative consequences? <!-- / message -->