Ask your nearest town, city or county government recycling or public works authority for the nearest public or private used oil collection sites in your area.
You may also be able to get a list of used oil collection sites in your area at Earth 911 (exit DNR) by entering your zip code in the box in the top left corner, and clicking the Used Motor Oil Recycling link on the center of the page.
Please do not mix anything else with used oil and do not put used oil on driveways, roads or other property for dust control.