Transmission oil TAP-15V

Oil TAP-15V (GOST 23652-79) is a mixture of a highly viscous aromatized product with distillate oil and a composition of additives that improve extreme pressure and low-temperature properties. It is used in truck transmissions and for lubrication of spur, spiral-bevel and worm gears, in which contact stresses reach 2000 MPa, and the oil temperature is 130°C. This all-season transmission oil is used in temperate climate region at temperatures up to -25°С.

Physical and chemical indicators of Transmission oil TAP-15V (GOST 23652-79)

Name of the indicator Norm GOST (TU)
Kinematic viscosity, mm2/s:
at 50°С -
at 100°С 15,0±1
Dynamic viscosity, PA, at-15 (-20)°С, not more than 180
Viscosity index, not less than -
Temperature, °С:
flash point in the open crucible, not less than 185
pour point, °C, not more than -20
Acid number, mg KOH/g, not more than -
Mass fraction, %:
mechanical impurities, not more than 0,03
water Traces
sulfur -
phosphorus, not less than -
water-soluble acids and alkalis Absence
Corrosion test on plates within 3 h:
steel and copper at 100 ° С Withstands
copper at 120 ° С, not more than -
Ash,  %, not more than -
Stability on the device DK - NAMI (140°С, 20 h):
change in Kinematic Viscosity at 100°С, not more -
the rate of sediment in petroleum ether, not more than -
The tendency to foaming cm3, not more than:
at 24°С -
at 94°С -
at 24°С after testing at 94°С -
Tribological characteristics on ChShMT:
Scuff index, N, not less than 490
Wear index at axial load 392N, (20±5°С), 1 h, mm, not more than -
Welding loading, N, not less than 3283
Colour, units of COP, not more than -
Density at 20°C kg/m3, not more than 930