BASE OIL BLENDS HAVING UNEXPECTEDLY LOW BROOKFIELD DYNAMIC VISCOSITY AND LUBRICANT COMPOSITIONS THEREFROM

摘要

A base oil having an unexpectedly low dynamic viscosity as measured by ASTM D5133 test method comprises a blend of about 65 to 97.5 wt% of a paraffinic oil having a VI of 130 or greater, a Kv @ 100°C of about 3.8 cSt or greater and a pour point of-15°C or less and an ester of lubricating viscosity of from about 35 to about 2.5 wt%. The base oil is further characterized as free of added viscosity modifiers.