Abstract EXTREME PRESSURE LUBRICANT ADDITIVES COMPRISING THE REACTION PRODUCT OF (A) A LEAD COMPOUND WHICH IF IT CONTAINS AN ANION, THE ANION IS REMOVED BY DISTILLATION AND (B) AN ORGANIC MONO CARBOXYLIC ACID OF FROM 8 TO 20 CARBON ATOMS WHICH CAN BE A BRANCHED CHAIN FATTY ACID, UNSATURED ACID, CYCLIC ACID, OR ITS GLYCERIDE IN AN AMOUNT LESS THAN ABOUT 50% OF THE STOICHIOMETRIC EQUIVALENT OF SAID LEAD COMPOUND AND (C) AN ALCOHOL OF THE FORMULA: R-(X-CH(-R1)-CH2)N-OH WHEREIN R IS HYDROGEN OR A HYDROCARBON RADICAL OF FROM 1 TO 8 CARBON ATOMS INCLUSIVE, X IS A CHALCOGEN, N IS AN INTEGER OF FROM 1 TO 3 INCLUSIVE, AND R1 IS HYDROGEN OR CAN BE TAKEN TOGETHER WITH R TO FORM A HETEROCYCLIC RING WHEN N IS 1, WHICH RING CAN BE SUBSTITUTED.