Once power steering fluid leaves your car, it needs a planned handoff. Keep it out of sinks, storm drains, soil, and household recycling while you confirm a local collection option.
Acceptance is the tricky part. Some household hazardous waste sites take it separately, while another program may manage it with certain used oils.
Where to Take Used Power Steering Fluid
Your city or county household hazardous waste program is a good first call. Ask specifically for power steering fluid because “used oil” does not always include every automotive fluid at the collection point.
King County, Washington, accepts power steering fluid at hazardous waste sites but tells residents not to mix it with used motor oil. That is a local rule, not a national one.
A service shop or automotive-fluid recycler may also accept it. Call first and ask about household eligibility, quantity limits, fees, appointments, and the container they require.
If the fluid came from a business or paid automotive work, ask for commercial waste guidance. Household programs commonly exclude business-generated material.
How to Prepare It for Collection
- Keep the fluid separate unless the receiving program explicitly says it may be mixed.
- Use a compatible container that closes securely and does not leak.
- Label the container “used power steering fluid” and note any known mixture.
- Store it upright away from children, pets, heat, and drains until drop-off.
- Follow the receiving site’s transport and quantity instructions.
Do not reuse a food or drink container. Someone could mistake the fluid for something consumable, and the receiving site may reject an unsuitable container.
If the container is leaking, contact the receiving program before moving it. Ask how they want you to control and transport the leak.
What Not to Do
Do not pour power steering fluid into a sink, toilet, septic system, storm drain, street, or soil. EPA identifies it as a motor-vehicle waste that may contaminate groundwater.
Do not burn it or put it in curbside recycling. Ask your local waste program how it handles this fluid before considering household trash.
Never assume an auto-parts store accepts it. Policies can differ by location and may cover motor oil without covering power steering fluid.
If You Have Not Removed the Fluid Yet
This article covers fluid that is already out of the vehicle. Follow the vehicle service manual or use a qualified mechanic for draining and repairs.
A shop can tell you whether its service includes recycling the removed fluid. Ask that question before authorizing the work.
For other vehicle liquids, see the guides to brake fluid, antifreeze, and old gasoline.