| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition containing a lubricating base oil and additives, having an antiemulsifiability lower than a specified value, excellent in antiemulsifiability and deaeration property and suitable as a lubricating oil composition for gas engines using town gas, LPG, digestion gas, hydrogen gas, or the like. SOLUTION: This composition is obtained by including a lubricating base oil and additives (preferably a zinc primary alkyl group-containing phosphorodialkyldithioate, a boron-containing succinimide and an antioxidant), having an antiemulsifiability of <=25 min, preferably <=20 min, more preferably <=15 min and a dearation property of <=0.001 g/cm3, preferably <=0.0005 g/cm3, more preferably 0.0002 g/cm3. |
