re another question about synthetic engi in article apr spectrum xerox com cooley xerox com writes in article news arc nasa gov howland noc arc nasa gov curt howland writes castrol syntec does not contain teflon it gets its greater lubrication by bonding to the metal surfaces of the engine thus making the metal ride on the polymer rather than having metal to metal contact i do not know if this also reduces the acid contact with the metal but it seems likely just becase something forms a resin does not mean that it s not teflon based the ptfe in slick is not teflon either but it s still teflon based teflon is a dupont owned tradename for ptfe slick does indeed use dupont teflon though some other brands of such stuff may use imported ptfe of another brand teflon being a trade name should always by capitalized dupont disclaims any benefits of ptfe in the oil supply of internal combustion engines btw dave svoboda svoboda void rtsg mot com we re bad t the bone concours mmmmmmmmmm bad t the bone rz ring ding woops universally feared ama dod cog chicago denizen warcry
