The Centers for Disease Control recommends that levels of fluoride should be at 0.7 milligrams per liter, which is the equivalent of three drops in a 55-gallon barrel of water, in order to give the ...

AAA's national average was at $3.157 a gallon on March 28 ... Refiners do all sort of things to a barrel of oil once they get it. They make gasoline, diesel fuel, heating oil and jet fuel which ...