2002 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 384

What to Do with Used Oil Used engine oil contains certain elements that may be unhealthy for your skin and could even cause cancer. Don't let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly throw away clothing or rags containing used engine oil. See the manufacturer's warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center for help. Engine Air Cleaner/Filter (Gasoline Engines) The engine air cleaner/filter assembly has an indicator that lets you know when the engine air cleaner/filter is dirty and needs to be serviced. The indicator is located on the engine air cleaner/filter cover. See "Engine Compartment Overview" in the Index for more information. See "Owner Checks and Services" in the Index to determine when to check the indicator. The service window (A) with the percentage scale shows the amount of engine air cleaner/filter life used. When both service window A and service window B turn orange, replace the engine air cleaner/filter. After changing the air filter, press the top button on the indicator to reset it. 6-19