The lubricant composition of claim 4 in which the amine is an oxygenated amine selected from the group consisting of(a) 3-methoxypropylamine, 3-ethoxypropylamine, 3-propyloxypropylamine, 3-butyloxypropylamine, 3-octyloxypropylamine, 3-hexoxypropylamine, 3-heptoxypropylamine, 3-nonyloxypropylamine or 3-decyloxypropylamine; (b) an ether diamine having the structural formula ##STR9## where a is 1 to