DESCRIPTION (Previously Shell Tivela S)
Shell Omala S4 WE is an Advanced Synthetic Heavy Duty Industrial Worm Drive Gear oil Formulated Using Specially Selected Polyalkylene Glycol Base Fluids and Additives. It Offers Outstanding Lubrication Performance Under Severe Operating Conditions, Including Improved Energy Efficiency, Long Service Life and High Resistance to Micro-Pitting.

Performance, Features & Benefits
Long oil life - maintenance saving ·
Shell Omala S4 WE is formulated to provide excellent  oxidation and thermal stability, extending lubricant life and  resisting the formation of harmful oxidation products at high  operating temperatures. This helps maintain system  cleanliness over extended maintenance intervals.
Shell Omala S4 WE Offers the Potential to Extend Service  Intervals Significantly Compared to Conventional Industrial Gear Oils.

Excellent Wear Protection ·
Shell Omala S4 WE is Formulated to Have Excellent Load  Carrying Capacity Providing Long Component Life Even Under  Shock Loading Conditions. It Also has a High Resistance to  Micro-Pitting. These Features Provide Benefits Over Mineral  oil-Based Products in Terms of Gear and Bearing Component  Life.

Maintaining System Efficiency ·
Shell Omala S4 WE Offers Improved Energy Efficiency and  Lower Operating temperatures.in Worm Gear Applications.  Rig Testing has Shown Efficiency Improvements of up to 15% in Comparison With Mineral oil-Based Products and 11%  Over Other Synthetic Hydrocarbon-Based Lubricants. These  Results Have Been Confirmed by OEM Testing and Field  Experience.

Main Application
Enclosed Industrial Worm Gear Systems
Recommended for Industrial Worm Gear Reduction Systems  Operating Under Severe Operating Conditions, Such as High  Load, Very low or Elevated Temperatures and Wide  Temperature Variations.
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Extended Life Systems
Shell Omala S4 WE is Particularly Recommended for Certain  Systems Where Maintenance is Infrequent or Systems are  Inaccessible (eg yaw Gears in Wind Turbine Installations).
·
Other Applications
Shell Omala S4 WE Oils are Suitable for Lubrication of  Bearings and Other Components in Circulating and SplashLubricated Systems.
·
Shell Omala S4 WE is not Recommended for the Lubrication of  Components Manufactured From Aluminium or Aluminium  Alloys.
For Highly-Loaded Spur and Helical Gears the Shell Omala  “G” Series Oils are Recommended.
For Automotive Hypoid Gears, the Appropriate Shell Spirax Oil  Should be Used.

Specifications, Approvals & Recommendations
David Brown S1.53.105 G ·
Fully Approved by Bonfiglioli ·
ISO 12925-1 Type CKE ·
Ansi/Agma 9005-E02 (EP) ·
For a Full Listing of Equipment Approvals and  Recommendations, Please Consult Your Local Shell Technical  Helpdesk, or the OEM Approvals Website