Owner's Manual
Page 557
...Lubricant, Superlube Key Lock (GM Part No. Chassis Lubricant (GM Part No. Front Axle 80W-90 (1500 Series) - U.S. 89021677, 3500 HD in the DURAMAX® Diesel manual. Usage 6-15 To determine the proper viscosity for Gasoline Engines Engine Oil starburst symbol. Washer Usage Fluid/Lubricant GM Power Steering Fluid...of clean, drinkable ® Engine Coolant water and use only DEX-COOL coolant. Drive Front Axle SAE 75W-90 Synthetic (1500, Axle Lubricant 2500 HD, and (GM Part No. Fluids and lubricants identified below by name, part number, or specification can be obtained from ...
...Lubricant, Superlube Key Lock (GM Part No. Chassis Lubricant (GM Part No. Front Axle 80W-90 (1500 Series) - U.S. 89021677, 3500 HD in the DURAMAX® Diesel manual. Usage 6-15 To determine the proper viscosity for Gasoline Engines Engine Oil starburst symbol. Washer Usage Fluid/Lubricant GM Power Steering Fluid...of clean, drinkable ® Engine Coolant water and use only DEX-COOL coolant. Drive Front Axle SAE 75W-90 Synthetic (1500, Axle Lubricant 2500 HD, and (GM Part No. Fluids and lubricants identified below by name, part number, or specification can be obtained from ...