Sierra Blue 286

Synthetic Blend Gear Lubricant

This high-performance blend is perfect for marine gear cases. It reduces friction, providing superior protection for gears, bearings, and other components. It exceeds OE performance standards and is ideal for heavy-duty applications in outboard or stern drive configurations.



Sierra offers a range of high-quality products, such as the Synthetic Blend Gear Lubricant, that are specifically designed to meet the demands of modern high horsepower engines and endure the tough marine environment. All Sierra products not only meet but also exceed the standards of the original equipment part it replace. Sierra is a trusted supplier of hundreds of quality parts to OEM engine manufacturers and boat builders every day.

Synthetic Blend Gear Lubricant/ S18-9650-2


  • Synthetic blended marine formulation reduces operating friction for increased performance.
  • Protects gears, bearings, and other gear case components.
  • For use in high-performance and high-load operating conditions in both outboard and I/O lower units.
  • Designed to surpass the performance of the O.E. High-performance gear lubricants.
  • GL-5 Rated.
  • Replaces Mercury (QuickSilver) Hi-Performance Blend.
  • Replaces Yamaha (Yamalube) LUB-GEARL-11-00.


Want to know more?

For more Engine Maintenance Products click HERE.


Sierra-synthetic-blend-gear-lubricant Sierra General Catalogue

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