Take the oil drain pan and, using the funnel, empty the old oil into the milk jugs for easy disposal. Seal them up tight and wipe any spills off. Wipe off the funnel and put it in the oil filler hole under the hood. Pour in as many quarts as it will take -- usually about six for the 2005 Chevy Silverado. As you wait for the oil to fill, you can start cleaning up. Throw away the newspapers and wipe down any tools that got dirtied up. Be sure to recycle the oil containers instead of just throwing them out. After the oil is all in, screw the cap back on and check the dipstick for the oil level just to be sure you got the right amount in. Place the old filter in the Ziploc bag and seal it up.

To check for leaks, start the engine and let it warm up for about five...

If you're in the clear, place the milk jug and the old oil filter into a box to prevent soiling the inside of your car and take it to the place you found earlier that will discard your old oil appropriately.
Now you're all done! Remember that changing your oil is really the most important thing that you can do to keep your car running in top condition, so do it whenever the oil change "idiot" light comes on in your Silverado, or every 7500 miles, whichever comes first (Kibler, 17).

Works Cited

Kibler, Jeff. General Motors Full-size Trucks 1999-2001: Chevrolet Silverado & GMC

Sierra Pick-ups, 1999-2001 Chevrolet Suburban & Tahoe, 2000 and 2001 GMC Yukon & Avalanche. Newbury Park, CA: Haynes Manuals, 2002.