AutoZone, normally puts OIL & Filter on Sale, and I buy much oil & filter to change them in our FOUR Cars, I normally return my USED oil at the Aberdeen, MD store on HWY 40. The complaint is, the store does not take the waste oil, excuse is, the barrel is full, me and my ARMY do a lot of business with AUTO ZONE and have to keep the oil a long time before returning it, and still the waste oil Barrels are full at Auto Zone, when ever you ask an Auto Zone Clerk to return the waste oil. AutoZone should do a better job of getting the Waste Oil Barrels emptied. read full review »