My county has a service that will pick up hazardous materials from your home once a year. They take car batteries, old paint, oil, antifreeze, etc. They give you a plastic bag and a bunch of labels to put on the stuff. You are supposed to be limited to whatever you can fit into the bag but last year I literally had six 5 gallon containers of oil and antifreeze and they took it...along with the dozen or so drained oil filters....