This is good info, thanks. I was totally off base in my thinking about the nature of this additive.
Originally Posted by OVERKILL
IIRC, Synerlec is a sulphated ester, which coined the nickname "Royal Sulphur" some time back. It's an EP additive IIRC.
EP additives are organic compounds with P, Cl, or S, including chlorinated paraffins or aromatics, di- or polysulfurized organic compounds, sulfurized mineral oils, esters of aryl(alkyl)phosphoric acid, chlorinated and/or sulfurized fatty acids or olefins, esters of phosphoric acid, polyalkylene glycol, etc. (see Borsoff and Wagner, 1975). EP additives with various properties are used both for neat oils and for water-based fluids.