The decay law of DF_4 Locamotive Diesel Engine Lube Oil was studied through ananalysis of its thermogravimetric curve (TG) and differential thermogravimetric curve (DTG).

• 通过对DF_4内燃机车柴油机润滑油的热重曲线TG和微商热重曲线DTG的分析,探讨了这种润滑油的衰变规律。