Gear Case Lubricant for Mercury 4 Stroke Outboard LIQUI MOLY Brand: LIQUI MOLY Liqui Moly Marine High Operation Gear Oil SAE 85W-90 Type: Mineral, High Operation Gear Oil, Viscosity: 85W-90 Applications: Mercury Outboard Motors up to 75 hp. and MerCruiser Z-Drives Provides Maximum Protection and Gear Life in Harsh Conditions, Size: 1 Liter Model #: 20536