This is all-season transmission oil, one for the gearbox and the drive gear (double-reduction gear unit with cylindrical and spiral-bevel gear wheels) of KAMAZ vehicles and other trucks, operating in moderately severe conditions. It efficiently protects transmission parts from wear, high-temperature deposits, corrosion, foaming. It retains the performance of transmissions at the temperature range from -20 to +130 °C. TSp-15K is factory-fill oil in KAMAZ vehicles. Approvals and specifications: API GL-3