What oil does a 2011 Chevy silverado 1500 use?

The 2011 Chevy Silverado 1500's recommended oil type depends on the engine it has. You need to check your owner's manual to be certain, but generally:

* For gasoline engines: It likely calls for 5W-30 or 5W-20 conventional or synthetic motor oil meeting the Dexos1 specification. Check your owner's manual for the exact viscosity and specification recommended by GM.

* For diesel engines: Diesel engines use a different type of oil with different specifications. Again, consult your owner's manual for the correct type.

Crucially: Do not rely on general advice; always refer to the sticker on your oil fill cap or, better yet, your owner's manual for the manufacturer's specific recommendation. Using the wrong oil can damage your engine.