Abstract: Condensation products made by reacting an alphahaloalkyl hydroxy-aromatic compound also having at least one non-fused hydrocarbyl substituent with at least one olefinic nitrile, carboxylic acid or carboxylic acid derivative are useful as additives for fuels and lubricants. The number of carbon atoms in the aromatic hydrocarbyl compound's substituents are each about 25 while the haloalkyl group contains from one to about 36 carbons. The acid or nitrile reactant usually contains three to about forty carbons. Product made from halomethyl alkyl-substituted phenols and .alpha.,.beta.-olefinic diacid derivatives such as maleic anhydride are particularly useful. Similarly useful products can be made from these condensation products by further reacting their acid, acid derivative or nitrile groups with alcohols, polyols, monoamines, polyamines, metal salts or metals.

Abstract: Lubricating compositions comprising a major proportion of lubricating oil and a minor proportion of at least one additive of the formula:Y.sup.a --S--Y.sup.bwherein Y.sup.a corresponds to ##STR1## and Z is ##STR2## and each R.sup.1 and R.sup.2 is independently hydrocarbyl, hydrocarbyloxy and hydrocarbylmercapto of one to about 30 carbon atoms; R.sup.3 is hydrogen or hydrocarbyl of up to about 10 carbon atoms; R.sup.4 is hydrogen or lower alkyl; R.sup.5 and R.sup.6 are each independently hydrogen, hydrocarbyl, hydrocarbyloxy and hydrocarbylmercapto of one to about 10 carbon atoms; R.sup.7 is hydrogen or hydrocarbyl of one to about 30 carbon atoms; each X is independently oxygen or divalent sulfur; n is zero or an integer of one to about 10; n' is zero or an integer of one to about 9; Y.sup.b is--R.sup.8 --H or --R.sup.8 --S--R.sup.9wherein R.sup.8 is a divalent hydrocarbyl group of one to about 30 carbon atoms and R.sup.9 is hydrogen or Y.sup.