One quart of oil can kill fish in thousands of gallons of water. Recycling used motor oil is easy. The following should help you find a location to take the oil. Call your local garbage, recycling or toxics agency for a referral. Many business have signed up with Valvoline to offer oil recycling, as Valvoline assumes responsibility for collection and liability.
Some states have laws requiring any business that sells oil to take used oil back from consumers.
Antifreeze contaminates motor oil - do not mix the two. Never mix anything with used motor oil. Never place used oil in a container that has contained other chemicals. Computer Printers, Especially Laser Printers Laser printer cartridges are easily recycled, refilled or re-built. Both laser and ink jet cartridges be refilled, typically a half dozen times.