Patent ID: 7947634

Claim:
A process for making a lubricant, comprising: blending together: a) about 0.001 to about 2 wt %, based on the total weight of the lubricant, of a mixture of amine phosphates; b) about 0.001 to about 0.5 wt %, based on the total weight of the lubricant, of an alkenyl succinic compound selected from the group consisting of an acid half ester, an anhydride, an acid, and mixtures thereof; c) about 0.10 to about 20 wt %, based on the total weight of the mixture, of a solubility improver having an aniline point less than 20° C.; and d) about 60 to about 98.5 wt %, based on the total weight of the mixture, of a lubricating base oil selected from the group consisting of an API Group II base oil having greater than 65% paraffinic chain carbons by ASTM D 3238, an API Group III base oil having greater than 65% paraffinic chain carbons by ASTM D 3238, an API Group IV base oil, a polyinternal olefin base oil, a hydroisomerized Fischer-Tropsch wax base oil, a Fischer-Tropsch oligomerized olefin base oil, and mixtures thereof; wherein the lubricant passes the 4 hour TORT B rust test; and wherein the lubricant meets the requirements of the MIL-PRF-17331J specification.