This invention encompasses lubricating oil compositions comprising a base oil, a biodiesel fuel and a Mannich condensation product. A method for inhibiting viscosity increase in a diesel engine fueled at least in part with a biodiesel fuel is also described.
本发明包括由基础油、
生物柴油燃料和曼尼希缩合产物组成的润滑油组合物。本发明还描述了一种抑制至少部分使用
生物柴油燃料的柴油发动机粘度增加的方法。