Lubricant composition

摘要

Lubricating oil formulated for use in an engine crankcase having improved anticorrosion property imparted by addition of a minor amount of the combination of (A) a block-oxyalkylated trimethylol alkane containing an initial hydrophobic block of propyleneoxy and optionally random ethyleneoxy units and a terminal hydrophilic block of ethyleneoxy and optionally random propyleneoxy units and (B) an oxyethylated alkylphenol.