Lubricant composition

The product of cliam 1 wherein the hydrocarbyl groups are selected from the group consisting of alkyl, alkenyl, cycloalky, cycloalkenyl, alkaryl, aralkyl and mixtures thereof.

The product of claim wherein the acyl sarcosine is lauroyl sarcosine and the boron compound is boric acid.

A lubricant composition comprising a major proportion of a lubricating oil or grease therefrom and a friction reducing amount of a reaction product made by reacting a boron compound with an acyl sarcosine of the formula ##STR3## wherein R.sup.1 is a hydrocarbyl group containing 1 to 20 carbon atoms, R.sup.2 is a C.sub.1 to C.sub.6 hydrocarbylene group and R.sup.3 is hydrogen or a C.sub.1 to C.sub.6 hydrocarbyl group, the reaction being carried out at from about 80.degree. C. to about 260.degree. C. using sufficient reactants to provide from about 0.02% to about 10% by weight of boron in the final product.

A method of decreasing fuel consumption in an internal combustion engine which comprises lubricating said engine with a lubricant composition comprising a major proportion of a lubricating oil and a fuel reducing amount of a product of reaction made by reacting a boron compound with an acyl sarcosine of the formula ##STR4## wherein R.sup.1 is a hydrocarbyl group containing 1 to 20 carbon atoms, R.sup.2 is a C.sub.1 to C.sub.6 hydrocarbylene group and R.sup.3 is hydrogen or a C.sub.1 to C.sub.6 hydrocarbyl group, the reaction being carried out at from about 80.degree. C. to about 260.degree. C. using sufficient reactants to provide from about 0.02% to about 10% by weight of boron in the final product.