| 摘要 |
A two-cycle oil composition comprising: (a) 10-20 percent of a first synthetic ester base stock oil (a copolymer of an alpha-olefin with an ester of a dicarboxylic acid, viscosity 20 to 50 cSt at 100 degree C); (b) 18-30 percent of a second synthetic ester base stock oil (an oxo alcohol ester of a dicarboxylic acid, viscosity 3 to 10 cSt at 100 degree C; (c) 30-40 percent of a polybutene polymer (Mn 300-1500); (d) 15-25 percent of a normally liquid solvent (boiling point up to 300 degree C, flash point of 60 degree -120 degree C); (e) 0.2 to 2.0 percent of an oil soluble copper compound, and (f) 0 to 5 percent of other lubricating oil additives.
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