Valvoline High Performance SAE 80W-90 Gear Oil 1 QT Protects Against Severe Temperatures to Help Extend Service Life Formulated with Extreme-Pressure Additives to Minimize Gear Wear from Shock Loads Helps Protect Against Gear Wear from Scuffing, Scouring, Corrosion and Pitting Recommended for Conventional Hypoid Differentials and Non-Synchronized Manual Transmissions in Passenger Cars, Light Trucks, Sport Utility Vehicles, Vans and Heavy-Duty Trucks Where an Api-Gl5 or Gl-4 Fluid Is Specified