1995 GMC Yukon Owner's Manual - Page 465

Part D: Recommended Fluids and Lubricants NOTE: Fluids and lubricants identified below name, part number or by specification maybe obtained from your GM dealer. USAGE Engine Oil (Gasoline Engine) FLUID/LUBRICANT Engine oil with the American Petroleum Institute Certified For Gasoline Engines "Starburst" symbol of the properviscosity. To determine the preferred viscosity for your vehicle's engine, see "Engine Oil"in the Index. Engine oil with the lettersCF-4/SH is best foryour vehicle. However, if C F 4 S H is not available, you may use CF-4SG or CE/SHor CE/SG oil. These letters show American Petroleum Institute (API) levels of quality. They may be listed in reverse order, SHKF-4 or other letters such as, SH/CD, CE, CF-4. To determine the preferred viscosity for your vehicle's diesel engine, see "Engine Oil"in the Index. Engine Oil (Diesel Engine) Engine Coolant Coolant Supplement Hydraulic Brake System 50/50 mixture of water and a good quality ethylene glycol base antifreeze oran approved recycled coolant conforming to GM Specification 6038-M. GM Part No. 3634621 or equivalent with a complete flush and refill. Delco Supreme 11 Brake Fluid (GM Part No. 1052535 or equivalent DOT-3 brake fluid). @ Hydraulic Clutch System Parking Brake Cables Hydraulic Clutch Fluid (GMa t Pr No. 12345347 or equivalent). Chassis Lubricant (GM Part No. 1052497 or equivalent) or lpbricant meeting requirements of NLGI Grade 2, Category LB or GC-LB . 7-97