You could always do like crooks in one of our poster's Wal-Marts: they buy new oil, drain their old, pour the new into their car, and drain the old into the new oil containers. Then try to return the used oil for a refund.
That is some steel cojones right there... I guess it's one way to recycle your oil.
That is some steel cojones right there... I guess it's one way to recycle your oil.