Chevrolet 2014 Silverado 2500HD Owner's Manual page 480

11-14 Service and Maintenance
Usage Fluid/Lubricant
Rear Driveline Center Spline Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Hood Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Body Door Hinge Pins, Tailgate Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Hinge and Linkage, and Fuel Door Canada 10953474).
Hinge
Tailgate Handle Pivot Points, Hinges, Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Latch Bolt, and Linkage Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or
Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481).
Weatherstrip Squeaks Synthetic Grease with Teflon, Superlube (GM Part No. 12371287, in
Canada 10953437).