Grease composition

A grease composition with an unworked penetration of from about 250 to about 300, a worked penetration of from about 250 to about 280, and a dropping point of at least about 300 degrees Fahrenheit, wherein said grease composition is comprised of from about 80 to about 95 weight percent of paraffinic bright stock oil and 12-hydroxy lithium calcium stearate, wherein at least about 5 moles of lithium are present in said composition for each mole of calcium, and wherein:

• (a) said paraffinic bright stock oil has an aniline point of at least about 220 degrees Fahrenheit, a viscosity index of at least about 90, a Saybolt viscosity at 100 degrees Fahrenheit of from about 100 to about 3,000 Saybolt Universal Seconds, a flash point of at least about 550 degrees Fahrenheit, and a pour point of from about 10 to about 35 degrees Fahrenheit;
• and
• (b) said grease composition exhibits an increase in swell of less than about ten percent and an increase in weight of less than about 5 percent when tested for compatibility with elastomeric innertube material.