Grease composition for constant velocity joints

A grease composition comprising:

• (a) a base oil and, on the basis of total weight of composition, the following components:
• (b) 1 to 25% by weight of a diurea thickener of formula (1):
• R.sup.1 NH--CO--NH--C.sub.6 H.sub.4 -p-CH.sub.2 --C.sub.6 H.sub.4 -p-NH--CO--NHR.sup.2
• wherein R.sup.1 and R.sup.2 may be the same or different and represent aryl groups having 6 or 7 carbon atoms or cyclohexyl groups;
• (c) 0.1 to 5% by weight of a molybdenum dialkyldithiocarbamate;
• (d) 0.1 to 5% by weight of molybdenum disulfide;
• (e) 0.05 to 3% by weight of at least one extreme pressure agent selected from the group consisting of zinc dithiophosphates and sulfur-nitrogen extreme pressure agents other than a molybdenum dialkyldithiocarbamate;
• and
• (f) 0.1 to 5% by weight of a phosphorus-free sulfur extreme pressure agent other than a molybdenum dialkylthiocarbamate, molybdenum disulfide and a sulfur-containing organic tin compound.