Lubricating oil composition for internal combustion engine

A lubricating oil composition for an internal combustion engine, comprising:

• (A) a lubricant base oil with a kinematic viscosity at 100° C. of 2.0 mm2/s to 5.0 mm2/s;
• (B) 50 mass ppm to 2000 mass ppm of a molybdenum-based friction modifier based on a total amount of the composition as an amount of molybdenum;
• (C) a nitrogen-containing ashless friction modifier;
• (D) a succinimide or a derivative thereof as a dispersant;
• (E) an amine ashless antioxidant as an antioxidant;
• and
• (F) 1000 mass ppm to 2200 mass ppm of a metallic detergent based on the total amount of the composition as an amount of metal,
• wherein the amount of sulfated ash based on the total amount of the composition is 0.9 mass % or less,
• wherein a nitrogen management index represented by the following formula is 0.60 or less:
• formula (A):
• (N(B)*1.1+N(C)*1.9)/(N(D)+N(E)*1.2), wherein N(B) is an amount of nitrogen (mass ppm) derived from the molybdenum-based friction modifier based on the total amount of the composition, N(C) is an amount of nitrogen (mass ppm) derived from the nitrogen-containing ashless friction modifier based on the total amount of the composition, N(D) is an amount of nitrogen (mass ppm) derived from the succinimide or a derivative thereof based on the total amount of the composition, and N(E) is an amount of nitrogen (mass ppm) derived from the amine ashless antioxidant based on the total amount of the composition, and wherein
• N(C) is 10 mass ppm or more,
• N(D) is 350 mass ppm or more, and
• N(E) is 410 mass ppm or more.