| abstract |
A process to make a lubricant, comprising: blending together: a) about 0.001 to about 2 wt % of a mixture of amine phosphates; b) about 0.001 to about 0.5 wt % 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 % of a solubility improver having an aniline point less than 20° C.; and d) about 60 to about 98.5 wt % of a lubricating base oil selected from the group consisting of an API Group II or 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, a Fischer-Tropsch oligomerized olefin base oil, and mixtures thereof; wherein the lubricant passes the 4 hour TORT B rust test. |