Patent ID: 7465696

Claim:
A lubricating base oil composition comprising (a) at least one Fischer-Tropsch derived lubricating base oil comprising (i) a weight percent of all molecules having at least one aromatic function of less than about 0.30, the weight percent based on the total weight of the Fischer-Tropsch derived lubricating oil; (ii) a weight percent of all molecules having cycloparaffinic functionality of greater than about 8, the weight percent based on the total weight of the Fischer-Tropsch derived lubricating oil; and (iii) a ratio of weight percent of molecules having monocycloparaffinic functionality to weight percent of molecules having multicycloparaffinic functionality greater than about 15:1, wherein the Fischer-Tropsch derived lubricating base oil has a kinematic viscosity of about 2 to about 5 centistoke (cSt) at 100° C.; and (b) at least one polyol ester.