2011 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 527

Service and Maintenance Usage Automatic Transmission Manual Transmission Key Lock Cylinders Floor Shift Linkage Chassis Lubrication Front Axle (1500 Series) Four‐Wheel Drive Front Axle (1500, 2500 HD, and 3500 HD Series) Rear Axle Transfer Case (Four‐Wheel Drive) ® 11-9 Fluid/Lubricant DEXRON -VI Automatic Transmission Fluid. Synchromesh Transmission Fluid (GM Part No. 12345349, in Canada 10953465). Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474). Lubriplate Lubricant Aerosol (GM Part No. 12346293, in Canada 992723) or lubricant meeting requirements of NLGI #2 Category LB or GC-LB. Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. SAE 80W-90 Axle Lubricant (GM Part No. 89021671, in Canada 89021672). SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677, in Canada 89021678). SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 89021677, in Canada 89021678). DEXRON®-VI Automatic Transmission Fluid.