| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas engine lubricant composition which can maintain a base number at a predetermined level or more for a long term.SOLUTION: A gas engine lubricant composition according to the present invention comprises (A) base oil, (B1) overbased calcium salicylate, (B2) overbased sodium sulfonate, (C1) amine antioxidant, and (C2) phenolic antioxidant. The total content of the (C1) amine antioxidant and (C2) phenolic antioxidant is 4 mass% or more based on the total content of the composition. |
