A series of nonsymmetric dialkyl disulfides were synthesized in the reaction of alkylmercaptans with alkyl halides in an alkaline alcohol solution in the presence of elemental sulfur and catalytic amounts of 1-(N,N-dimethylaminomethyl)-1,2,4-triazole. It was shown that nonsymmetric dialkyl disulfides synthesized by the novel procedure possess antiscuff properties and can be used as high-performance additives for lubricating oils.