Anything other than Molybdenum (MOS) is bullshit. Dupont tried to stop selling their teflon to companies making oil additives and got sued. They had lab results that indicated problems with micro particles clogging filters and may result in engine damage. At best they clog filters, at worst they can cause premature failures. They lost the suit and had to continue to supply it. If it worked Dupont would be marketing it directly. Teflon is not soluable and remains in powdered form in your oil!