Abstract: Dithiocarbamyl derivatives, useful as multifunctional additives for lubricating oils, of the formula ##STR1## wherein Q is ##STR2## R.sup.1 and R.sup.2 are each independently C.sub.1 -C.sub.30 n-alkyl, C.sub.3 -C.sub.30 branched alkyl, C.sub.3 -C.sub.12 cycloalkyl, C.sub.5 -C.sub.12 aryl, or C.sub.6 -C.sub.12 alkylaryl; R.sup.3 is C.sub.1 -C.sub.20 alkylene; R.sup.4 is --R.sup.3 --C(O)--O--; R.sup.5 and R.sup.6 are each independently hydrogen, C.sub.1 -C.sub.30 n-alkyl, C.sub.3 -C.sub.30 branched alkyl, C.sub.3 -C.sub.12 cycloalkyl, C.sub.5 -C.sub.12 aryl, or C.sub.6 -C.sub.12 alkylaryl; R.sup.7 is C.sub.1 -C.sub.20 alkylene, optionally substituted with --OR.sup.5 or --COOH; R.sup.8 is --R.sup.3 --C(O)--NR.sup.5 --; n is 0, 1, 2 or 3; and y is 0, 1, 2, or 3.

Abstract: A lubricating oil composition comprising:(a) a major amount of an oil of lubricating viscosity; and(b) a minor dispersant amount of a synergistic combination of an antioxidant-dispersant additive and a dispersant additive, said combination comprising:(i) a polyisobutylene succinimide; and(ii) an ethylene-propylene succinimide.

Abstract: An additive compositon comprising a graft and aminederivatized copolymer prepared from ethylene and at least one (C.sub.3 -C.sub.10) alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene, from about 20 to 85 mole percent of said (C.sub.3 -C.sub.10) alpha-monoolefin and from about 0 to 15 mole percent of said polyene, said copolymer having a number average molecular weight ranging from about 5,500 to 50,000 and having grafted thereon at least 1.8 molecules of a carboxylic acid acylating function per molecule of said copolymer and reacting said grafted copolymer with an amino alcohol compound selected from the group consisting of a 2-Anilinoalcohol, a (2-hydroxyalkyl) pyrridine, a 4-(2-hydroxyalkyl) morpholine, a 1-(2-hydroxyalkyl) piperazine, a 1-(2-pyrrolidine and a 1-(2-hydroxyalkyl) 2-pyrrolidine.