Problems of Assessing Quality of Performance of Steam Turbine Oils

IN the editorial of the July number of Scientific Lubrication a case is quoted of a user who appar‐ently replenishes his steam turbine with additives while it is in service. It appears that this (Chicago) user finds that this practice serves him well but the Editor finds it rather unusual and invites the opinion of additive manufacturers and further queries whether such self help could be applied to lubricants other than turbine oils.