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Red Line 75W90NS GL-5 gear oil is a full-synthetic transmission and differential lubricant formulated without friction modifiers, offering extreme-pressure protection and stable viscosity across temperatures. It helps slow synchro engagement for easier shifting in transmissions, improves differential efficiency for better mileage and less wear, and is non-corrosive and safe for synchronizer materials. Used in muscle car and transaxle applications where GL-5 protection is required.
Red Line 75W90NS GL-5 Gear Oil - Gallon
