Silver protection in lubricant compositions is afforded by the combination of organo sulfur compounds and hydrocarbon substituted 1,2,4 triazoles, the latter being obtained by {HEAD ~ reaction} of {TAIL ~ a substantially aliphatic, substantially saturated hydrocarbon substituted dicarboxylic acid} with an aminoguanidine compound 
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Silver protection in lubricant compositions is afforded by the combination of organo sulfur compounds and hydrocarbon substituted 1,2,4 triazoles , the latter being obtained by { HEAD ~ reaction } of { TAIL ~ a substantially aliphatic , substantially saturated hydrocarbon substituted dicarboxylic acid } with an aminoguanidine compound
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH