What is the 2011 chevy silverado 2500hd oil type?

The 2011 Chevy Silverado 2500hd oil type is Synthetic Motor Oil 5W-30. When performing an oil change on the car You will first want to make sure that the vehicle has been parked and off for a couple of hours. Otherwise, the oil in the car will be very hot and You could burn Yourself. Find the oil pan in the engine compartment and locate the drain plug on the underside. Position a bucket under the plug and then remove it. This will allow the oil to drain into the pan. Let it do this until it stops dripping, which may take an hour or so. After it has finished dripping You can put the drain plug back on, then locate the intake port on the top of the oil pan. Using a funnel fill the oil pan to full, but make sure to not overfill. A little under is fine, but going over can lead to leaks and oil burn off. Once it is full close the port up, wipe up any spilt oil and You will be finished.