Mobil Stern Tube Lubricant is a high viscosity lubricating oil developed especially for the lubrication of Cedervall stern tube bearings in ships, and for certain stabilizer bearings. The oil has very good emulsifying properties.

Cst @ 40 °C 385, Cst @ 100°C 24 , Specific Gravity @ 15 °C 0.915, Viscosity Index 82