Star Brite Premium Marine Gear Lube Synthetic Blend SAE 90 helps anglers protect outboard and stern drive lower units through long runs, repeated launches, and demanding days chasing walleye, bass, salmon, or musky. This SAE 90 synthetic blend marine gear lube uses anti-wear additives and corrosion inhibitors to help shield gears from wear, rust, and harsh marine conditions while supporting efficient lower unit performance. It suits major marine motor and drive brands, including Mercury, Mercruiser, Johnson, Evinrude, OMC, Force, Mariner, Nissan, Suzuki, Yamaha, and Volvo, and meets API MT-1, GL-5, SAE J2360, and MIL-L-2105E specifications. The 32 oz. bottle includes instructions and pairs with the Star Brite Lower Unit Quart Pump for cleaner, controlled servicing. SAE 90 synthetic blend gear lube for outboard motors and stern drives Anti-wear additives and corrosion inhibitors help protect gear components Meets API MT-1, GL-5, SAE J2360, and MIL-L-2105E specifications Compatible with major marine brands and manufacturer warranty requirements 32 oz. bottle Made in the USA