An additive for oils that is capable of imparting oils such as lubricant base oils with superior wear resistance properties or friction resistance properties, and a lubricant. An additive for oils that includes a compound represented by formula (I) is used. A and B each represents a single bond or hydrocarbylene or the like, X and Y each represents a sulfur atom or single bond, and W and Z each represents a hydrogen atom or —NR
1
R
2
or the like, provided that W and Z are not both hydrogen atoms. R
1
and R
2
each represents a hydrogen atom, a hydrocarbyl or a hydrocarbylcarbonyl or the like, and n and m each represents an integer of 0 to 5.
一种用于油的添加剂,能够赋予润滑油基础油卓越的耐磨性能或摩擦阻力性能,以及润滑剂。所使用的油添加剂包括由式(I)表示的化合物。其中,A和B分别表示单键或烃基亚烷基等,X和Y分别表示
硫原子或单键,W和Z分别表示氢原子或—NR1R2或类似物,但要求W和Z不同时为氢原子。R1和R2分别表示氢原子、烃基或烃基羰基等,n和m分别表示0至5的整数。