The Sierra 18-9600-5 Premium Lower Unit Gear Lube is recommended for all general marine applications requiring a GL-5 class lubricant. Formulated for use in fresh water or saltwater conditions and all standard marine applications. Reduces friction and protects gears, bearings and other gear case components Formulated for use in fresh water or saltwater conditions Recommended for all general marine applications requiring a GL-5 class lubricant GL-5 Rated Lube 5 Gallon container MODEL NO - 18-9600-5