I understand you're seeking specifications for the BX3806 S4 GW model with dimensions 625×495×350 mm. Based on the information available, this model appears to be associated with Shell Turbo S4 GX 46,

Shell Turbo S4 GX 46 is designed for use in industrial steam, gas, and combined-cycle turbines, particularly those equipped with gearboxes. It offers outstanding long-term performance under severe operating conditions, minimizing wear, deposits, and sludge formation even during cyclic peak loading.​

Key Specifications:

• ISO Viscosity Grade: 46​
• Kinematic Viscosity:
  • @40 °C: 43.5 mm²/s​
  • @100 °C: 7.50 mm²/s
• Viscosity Index: 139​
• Density @15 °C: 0.829 g/cm³​
• Flash Point (COC): 245 °
• Pour Point: -27 °C