2003 GMC Envoy Owner's Manual - Page 418

Part D: Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number or specification may be obtained from your dealer. Usage Gasoline Engines starburst symbol of the proper viscosity. To determine the preferred viscosity for your vehicle's engine, see Engine Oil on Daae 5-15. I50/50 mixture of clean. Usage Parking Brake Gable Guides Power Steering System Automatic Transmission Engine Oil Key Lock Fluid/Lubricant Chassis Lubricant (GM Part No. -- U.S. 12377985, in Canada 88901242, or equivalent) or lubricant meeting requirements of NLGl #2, Category LB or GC-LB. GM Power Steering Fluid (GM Part No. U S . 1052884, in Canada 993294. or equivalent). I DEXRON@ -111 Automatic Transmission Fluid. Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474, or equivalent)...-. . I I I I Chassis Lubrication Front and Rear Axle I U.S. 12377985, in Canada 88901242, or equivalent) or lubricant meeting requirements of NLGl #2, Cateaorv LB or GC-LB. rl, SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 12378261, in Canada 10953455) or equivalent meeting GM Specification 99861 15. 6-17