| abstract |
A grease formulation containing a thickener and a Fischer-Tropsch derived base oil, in particular a heavy or extra heavy base oil. The use of a Fischer-Tropsch oil results in an increase in thickener concentration and in improved properties such as anti-wear and copper corrosion performance. Also provided is the use of a Fischer-Tropsch derived base oil in a grease formulation, for the purpose of improving its anti-wear and/or copper corrosion performance, and/or for reducing the concentration of an additive in the formulation. |