LUBRICANT OIL COMPOSITIONS CONTAINING GTL BASE STOCK(S) AND/OR BASE OIL(S) AND HAVING IMPROVED RESISTANCE TO THE LOSS OF VISCOSITY AND WEIGHT AND A METHOD FOR IMPROVING THE RESISTANCE TO LOSS OF VISCOSITY AND WEIGHT OF GTL BASE STOCK(S) AND/OR BASE OIL(S) LUBRICANT OIL FORMULATIONS

摘要

The present invention is directed to a method for improving the performance of lubricating oils of high viscosity comprising GTL base stock(s) and/or base oil(s) and lubricating oil comprising such base stock(s) and/or base oil(s) in combination with an effective amount of a polyolefin fluid having a kinematic viscosity at 100° C. in the range between about 10 to about 200 mmSUP2/SUP/s.