A hydrocarbon oxidate composition which comprises the reaction product of (a) a hydrocarbon oxidate, as described herein, or the metal salt thereof, with (b) a polyamine, as described herein, and (c) at least one copolymer of an olefin and a comonomer selected from (i) an unsaturated carboxylic acid; or (ii) a vinyl ester of a saturated carboxylic acid, wherein the hydrocarbon oxidate composition comprises a wax oxidate, a petrolatum oxidate or mixtures thereof and has a very high viscosity, increased molecular weight and sinewy characteristics and is useful as a lubricant, grease, or protective coating.