Genuine Mazda Fluid (0000-77-80W9-QT) SAE 80W-90 Rear Differential Oil - 1 Quart Offers exceptional gear lubrication under high-speed, high-torque conditions Protects against gear scoring, corrosion and abrasion Exceeds American Petroleum Institute (API) GL-5 requirements Provides outstanding protection for differential bearings Minimizes foaming