The present work has been aimed at studying the influence of excess alkali (LiOH) on the service properties and effectiveness of the additives* SIM (5% by weight), DF-11 (1% by weight), KINKh-2 (5% by weight), MoS= (5% by weight), and of combinations of these additives, in lithium greases. The greases were prepared by compounding AU spindle oil with lithium 12-hydroxystearate (LiOSt) at a concentration of 10% the blended grease was slow-cooled at 2-4~ The concentration of excess alkali was measured and expressed as % NaOH (in accordance with GOST [All-Union State Standard] 6707-76). The alkallnity of the greases was varied from 0 to 1% NaOH. The additives were introduced into the soap-oil melt 1 min before cooling. An investigation of the influence of alkali on the protective properties of the greases (Dynacorrotest instrument [5]) without additives showed that as the alkalinity was increased up to 0.1%, the corrosion rate remains practically unchanged; further increases in the alkali content have an adverse effect on the protective properties of the greases. Excess alkalinity has little effect on such lubricity indexes as the critical seizure load, weld load, and scoring index, but it does improve the antiwear properties: The wear scar diameter D w decreases from 0.65 mm for the neutral grease to 0.45m m for the grease with excess alkali equivalent to 1% NaOH. As the alkalinity is increased, the theological properties generally become worse. Exceptions are the greases with the additive DF-II and with the following combinations of additives: SIM+ KINKh-2, DF-II + MoS=, and SIM+ DF-II. These greases become somewhat stronger (harder) at an alkalinity of 1% NaOH. For the greases with additives, we observed an extremal variation of lubricating properties with increasing alkalinity(Table