High viscosity index lubricant fluid

摘要

The invention provides a composition comprising at least about 10 different diamondoid compounds selected from the group consisting of methyl-substituted and ethyl-substituted adamantane, diamantane, and triamantane, wherein each of said selected diamondoid compounds comprises no more than about 10 weight percent of said composition. The composition is useful as high quality lubricating fluid and exhibits the unusual combination of high Viscosity Index and very low pour point.