High-Viscosity 80W-90 Lower Unit Gear Lube (1 Quart)
Keep your marine engine running as smooth as the glass on a sunrise lake. Engineered for the high-pressure environment of outboard and stern-drive lower units, our 80W-90 Gear Lube provides the ultimate defense against friction, heat, and the harsh realities of the water.
Why Its a Must-Have for Your Boat
Marine engines face unique challengesmainly constant exposure to water and heavy loads. This high-viscosity formula is specifically designed to stay “sticky,” ensuring gears remain coated even under extreme stress.
Superior Lubrication: Formulated with high-quality base oils to reduce wear on gears and bearings.
Water Emulsification Pro: Contains advanced additives that maintain lubrication integrity even if a small amount of water enters the gearcase.
Rust & Corrosion Shield: Specifically designed for marine environments to prevent pitting and oxidation during long-term storage or heavy use.
Extreme Pressure (EP) Performance: Handles the high-torque demands of modern high-horsepower engines without breaking down.
Technical Specifications
Feature
Specification
Viscosity Grade
80W-90
Volume
1 Quart (32 fl oz)
Service Rating
API GL-5
Compatibility
All outboards and stern-drives (check manual)
Color
Dark Amber
Application Tips
Pro Tip: Always change your lower unit lube at the end of the season. If you see “milky” oil during the drain, its a sign of a failing seal that needs attention before the next launch!
Step 1: Position the motor vertically.
Step 2: Remove the bottom drain screw and top vent screw.
Step 3: Fill from the bottom hole until the fluid reaches the top vent to ensure no air pockets are trapped.
Step 4: Secure the top vent screw first to create a vacuum, then the bottom drain screw.
Don’t let gear friction cut your weekend short. Protect your investment with the lube thats built for the deep.
