Put it in a container and put it in the trash. If you don't have a
trash service, but there's a trash transfer station or drop-off
facility in the area, you can ask if they'll take it (usually for a fee).
Burn or bury it.
If you have a lot of oil, put it on Craigslist for the biodiesel
Restaurants have pickup services for their old oil; a local restaurant
might accept yours if you ask nicely/give them a few bucks.
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