pat no 3 965 016 which is herein incorporated by reference the following examples are provided to further illustrate the present invention in which the antimony thioantimonate and molybdenum disulfide or graphite synergistic mixtures were prepared and tested as lubricant mixtures with greases and oils of lubricating viscosity a silica grease derived from a synthetic polyalphaolefin base fluid thickened with silica was separately blended with different mixtures of sbsbs 4 and mos 2 as shown in table i below the blended greases were evaluated by means of shell four ball ep and wear testers the experimental results are recorded in table i the wear scar diameters load wear indexes and weld points of the greases containing different ratios of sbsbs 4 and mos 2 are superior to those of the greases containing either sbsbs 4 or mos 2 alone table i______________________________________shell four ball lubricating properties ofsilica grease sup 1 containing various additivesexample no 1 2 3 4 5 6 7______________________________________sb sub 2 s sub 4 0 10 7 5 6 7 5 0 3 3 0mos sub 2 sup 3 0 0 2 5 3 3 5 0 6 7 10scar dia mm sup 2 0 81 0 72 0 56 0 52 0 53 0 52 0 63weld pt kg 126 400 500 500 500 400 250load wear index 33 100 111 111 113 107 35______________________________________ sup 1 polyalphaolefin oil thickened with silica sup 2 1200 rpm 40 kg and 167 u00b0 f for one hour aisi 52100 steel balls sup 3 technical fine grade using the same procedure as described in example 1 7 silica grease was separately blended with different.