Patent ID: 8247358

Claim:
An oil formulation comprising: a) a metallocene catalyzed HVI-PAO with a viscosity greater than 125 cStkv 100° C. and a viscosity index greater than 100; b) a second base stock with a viscosity of at least 2 cStkv 100° C. and less than 60cStkv 100° C. wherein the second base stock is at least 60 cStkv 100° C. less than the metallocene HVI-PAO; c) a di-octylsebacate ester with a viscosity of at least 2 and less than 6 cStkv 100° C., the ester comprising more than 10 weight percent and less than 30 weight percent of the oil formulation; d) the oil formulation having a viscosity index of greater than 195, wherein the shear stability of the oil formulation as measured by % viscosity loss at 100° C. using the KRL Bearing Shear Test (CEC L-45-A-99) is less than or equal to 1.7%.