Shell Spirax S6 AXME 80W-140 is a fully synthetic, multipurpose, heavy-duty gear lubricant specifically designed for heavy duty differentials that call for an API GL-5 type product. 

Key Features:

• Outstanding thermal stability especially in applications where heat, wear and extended drain intervals contribute to severe
• service.
• High film strength and excellent shear stability.
• Excellent low temperature properties promote oil flow to help protect gears and bearings even at sub-zero temperatures.
• Synthetic formula provides maximum protection over a wide range of temperatures.
• Separates readily from water.
• Compatible with other MIL-L-2105D or MIL- PRF-2105E quality gear lubricants.