Use of ethyl-dimethyl-2-methoxyethylammonium tris(pentafluoroethyl)trifluorophosphate as base oil additive in the lubrication of TiN PVD coating

► Considerable improvements in anti-friction and anti-wear properties of base oil are achieved using ethyl-dimethyl-2-methoxyethylammonium tris(pentafluoroethyl)trifluorophosphate, as 1 wt% additive in PAO. ► The tribological behavior of the ionic liquid is slightly worse than that of ZDDP. ► Results are very interesting for the scientific community and lubricant manufacturers due to the interest of ionic liquids as greener alternatives to conventional oil additives.