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Take your old, used, or tainted antifreeze to a local recycling center, service station, or auto parts shop. They require different disposal treatments — tainted antifreeze may contain heavy metals and is considered hazardous waste, so only that kind of facility will take it.
Hereof, can you throw away antifreeze?
Remember that only pure, used antifreeze can be recycled; antifreeze with traces of gas or oil must be disposed of at a hazardous waste facility.
In this regard, does Autozone take old antifreeze?
Used fluids such as engine oils, transmission fluid, antifreeze and brake fluid are hazardous waste items and must be disposed of properly. In many areas, waste oil, coolant, etc. is being accepted as a part of recycling programs.
Call Wal-mart or any other quick lube type place that provide coolant flushes. Most of them use recycled coolant. They recycle the coolant using kit.