TURBINE OILS WITH EXCELLENT HIGH TEMPERATURE OXIDATIVE STABILITY

摘要

A turbine lubricant consisting of (A) alkylated diphenylamines and/or phenylnaphthylamines, and (B) sulfurized olefins and/or sulfurized fatty acids and/or ashless dithiocarbamates and/or tetraalkylthiuram disulfides, with the balance containing (C) base oils characterized by very low sulfur contents (< 0.03 wt%) and a high level of saturates (> 90 volume %), and optionally (D) neutral rust inhibitors, show superior oxidative stability and provide adequate corrosion protection and sludge control for turbine oil and R/AO oil applications.