High temperature lubricating grease containing urea compounds

A lubricating grease suitable for high temperature use, consisting essentially of:

• 60 to 70% by weight of at least one mineral oil,
• 10 to 20% by weight of at least one synthetic oil based on poly-.alpha.-olefins,
• 5 to 12% by weight of at least one urea compound as a thickener, wherein the at least one urea compound is a reaction product of at least one fatty amine and at least one isocyanate or at least one diisocyanate,
• 2 to 8% by weight of calcium complex grease,
• 1 to 3% by weight of molybdenum disulphide having a particle size of 0.2 to 10 .mu.m,
• 0.2 to 0.6% by weight of graphite powder having an average particle size of 0.1 to 10 .mu.m,
• 0.2 to 0.6% by weight of polytetrafluoroethylene powder having an average particle size of 1 to 20 .mu.m,
• 0.2 to 0.6% by weight of solid particles of molybdenum dithiocarbamate having an average particle size of 0.5 to 20 .mu.m,
• 0.3 to 1% by weight of mercaptothiadiazole and
• 0.1 to 1% by weight of a corrosion inhibitor.