Oil TAP-15V (GOST 23652-79) is a mixture of high viscosity favored product with a distillate oil and additive package that improve extreme pressure and low temperature properties.
The oil is used in transmissions of trucks and for lubrication of spur, spiral bevel and worm gears, in which the contact voltage reaches 2000 MPa, and the oil temperature within the scope 130 °C. In the middle climatic regions, the oil is used in all seasons at temperatures up to -25 °C.
Kinematic viscosity at 100 °C, mm2/ s: 15
Kinematic viscosity at 40 °C, mm2/ s: —
Viscosity index, not less than: —
Flash point in open cup, not lower than, °C: 185
Pour point not higher than, °C: -20
Density at 20 °C, kg/cu.m, not more than: 930
Acid number, potassium hydroxide mg/ g, not less than: —
Ash content, % (mass fraction), not more than: —
Mass fraction of water,% , not less than: traces
Mechanical impurities, %, not more than: 0.03
The mass of phosphorus, %, not less than: —
Sulphur content, %, not less than: —