| abstract |
1. Semi-synthetic engine oil for the lubrication of mixed piston two-stroke engines with spark ignition, characterized by the fact that it contains 40.0 to 70.0 parts of mass of main base oils with an atic kinetic viscosity of 5 to 30 mm 2 / s at a temperature of 100 ° C treated with flow modifiers, 10.0 to 30.0 parts by mass of polybutenes with an average numerical molecular weight of up to 1000 Daltons and an atic kinetic viscosity of 100 to 300 mm 2 / s at 100 ° C, 5.0 to 30.0 parts of the solvent with a distillation range starting boiling from 150 ° C and ending boiling up to 300 ° C and aromatic hydrocarbons content up to 40% by volume and 5.0 to 10.0 parts by mass of a lubricant composition containing up to 90.0 parts by mass of detergent-dispersant additives, calcium compounds in the amount of 5.0 to 40.0 parts by mass and / or oil-soluble polyethers up to 30.0 parts by mass. PL |