A lubricating oil composition used in an internal combustion engine is provided. The internal combusting engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat, and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition includes: base oil of lubricating oil; a component (A) containing a boron derivative of an alkyl or alkenyl-substituted succinimide compound having a number average molecular weight of 200 to 5000; and a component (B) containing an alkaline earth metal-based detergent. The component (A) is contained by 0.01 to 0.2 mass% in terms of boron of a total amount of the composition while the component (B) is contained by 0.35 mass% or less in terms of the alkaline earth metal of the total amount of the composition.
提供了一种用于内燃机的润滑油组合物。内燃机使用的燃料含有至少一种脂肪和油,这些脂肪和油选自天然脂肪和油、加氢处理的天然脂肪和油、酯交换天然脂肪和油以及加氢处理的酯交换天然脂肪和油组成的组。润滑油组合物包括:润滑油基础油;含有烷基或烯基取代的琥珀
酰亚胺化合物的
硼衍
生物的组分(A),其平均分子量为 200 至 5000;以及含有碱土
金属基洗涤剂的组分(B)。组分(A)中
硼的含量占组合物总量的 0.01 至 0.2%,而组分(B)中碱土
金属的含量占组合物总量的 0.35%或更少。