Premium Lower Unit Gear Lube by Sierra Recommended for all general marine applications requiring a GL-5 class lubricant. Formulated for use in freshwater or saltwater conditions. Reduces friction and protects gears, bearings and other gearcase components. Ideal for replacing all old hypoid 90 application needs. Replaces Mercury Quicksilver Premium Blend, 92-858058Q01 OMC System Matched Hi-Vis Lubricant Yamaha Yamalube LUB-GEARL-11-04 Mallory 9-82401 California Residents WARNING Cancer and Reprod