2008 GMC Yukon Owner's Manual - Page 507

Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer/retailer. Fluid/Lubricant Engine oil which meets GM Standard GM6094M and displays the American Petroleum Institute Certified for Gasoline Engines Engine Oil starburst symbol. To determine the proper viscosity for your vehicle's engine, see Engine Oil on page 5-15. 50/50 mixture of clean, drinkable ® Engine Coolant water and use only DEX-COOL Coolant. See Engine Coolant on page 5-28. Hydraulic Brake Delco® Supreme 11 Brake Fluid or System equivalent DOT-3 brake fluid. Usage Usage Windshield Washer Fluid/Lubricant Optikleen® Washer Solvent. Power Steering GM Power Steering Fluid (GM Part No. U.S. 89021184, in System Canada 89021186). Automatic DEXRON®-VI Automatic Transmission Transmission Fluid. Multi-Purpose Lubricant, Superlube Key Lock (GM Part No. U.S. 12346241, in Cylinders Canada 10953474). Chassis Lubrication Front Axle (1500 Series Vehicles with Four-Wheel Drive) Front Axle (2500 Series Vehicles with Four-Wheel Drive) Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. SAE 80W-90 Axle Lubricant (GM Part No. U.S. 89021671, in Canada 89021672). SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) meeting GM Specification 9986115. 6-13