GMC 2011 Sierra Denali Owner's Manual page 453

Service and Maintenance 11-9
Usage Fluid/Lubricant
Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879,
Front Axle Propshaft Spline
in Canada 10953511).
Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241,
Hood Hinges
in Canada 10953474).
Body Door Hinge Pins, Tailgate Hinge
Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241,
and Linkage, Folding Seats, and
in Canada 10953474).
Fuel Door Hinge
Tailgate Handle Pivot Points, Hinges, Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241,
Latch Bolt, and Linkage in Canada 10953474).
Weatherstrip Lubricant (GM Part No. U.S. 3634770, in Canada 10953518)
Weatherstrip Conditioning or Dielectric Silicone Grease (GM Part No. U.S. 12345579,
in Canada 992887).
Synthetic Grease with Teflon, Superlube (GM Part No. U.S. 12371287,
Weatherstrip Squeaks
in Canada 10953437).