| 摘要 |
PROBLEM TO BE SOLVED: To provide a marine engine lubricant composition produced by blending MDCL (marine diesel cylinder lubricant) and TPEO (trunk piston engine oil), both of which do not include a bright stock at reduced cost.SOLUTION: There is provided a two- or four-stroke marine engine lubricant composition comprising an oil of lubricating viscosity in a major amount, (A) additives in respective minor amounts, and (B) a viscosity modifier of olefin copolymer. Preferably, the bright stock is completely or substantially not included. |
