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 VISCO

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 polyolefln fluid having a kinematic viscosity at 10O0C in the range between about 10 to about 200 mm2/s.