Improvements in or relating to lubricating greases

Greases comprise a lubricating oil, a thickener and 0.001-2 wt. per cent of a 1,2,4-triazole, e.g. 3-amino-1,2,4-triazole. The thickener may be a lithium soap, e.g. lithium hydroxy stearate, or a clay which may be coated with aminoamides formed from C10-C22 acids and alkylene polyamines. The grease may also contain castor oil, aromatic amines, alkali metal nitrites, glycerol, lead naphthenates or metal sulphides. The oil may be mineral or synthetic (no examples).