How to Dispose of Antifreeze (Used Coolant) Safely

The short answer

Drain used antifreeze into a clean container, seal it in a labeled plastic jug, and take it to a household hazardous waste (HHW) site or collection day, a transfer station or recycling center that accepts it, or an auto shop or recycler that takes it. Call first, because not every location does.

Never pour it into a sink, toilet, storm drain, septic system or onto the ground. Connecticut DEEP says used antifreeze should never be dumped down a drain, into the sewer or on the ground. EPA's household hazardous waste page names pouring hazardous products down drains or into storm sewers as improper disposal.

Checked October 2026. Programs, fees and accepted items change, and the rules where you live are the ones that count. Call your local solid waste office or the drop-off site before you go.

Why antifreeze needs special handling

• It's toxic, and pets are drawn to it. Most antifreeze is made with ethylene glycol. According to the ASPCA, it tastes sweet, so pets will drink it, and a small amount can be fatal. If you think a pet swallowed some, call a vet or ASPCA Animal Poison Control at (888) 426-4435 right away. The ASPCA says that line may charge a consultation fee.
• Used coolant picks up metals. Connecticut DEEP notes that both ethylene glycol and the less toxic propylene glycol types may contain lead after use. New Hampshire DES says used antifreeze often contains benzene, lead and other toxic ingredients.
• The rules come from your state. an EPA fact sheet on used antifreeze says there are no federal requirements for disposing of used antifreeze, but most states regulate it. That's why acceptance and paperwork vary from place to place.

How to drain and store it for the trip

1. Catch it in a clean pan. Use a drain pan that has never held oil, and a funnel to pour it into the jug. Connecticut DEEP suggests a drip pan and funnel and, if you can, pouring it back into the original container.
2. Use a plastic jug with a twist cap. If you don't have the original container, CT DEEP suggests a plastic container with a twist top. Never use a milk or juice jug, since anything that looks like a drink is a poisoning risk.
3. Label it. Write "Used antifreeze" and the date on it.
4. Don't mix it. Keep antifreeze separate from motor oil, gasoline, brake fluid and solvents. A mixed jug can be refused, and EPA's fact sheet says used antifreeze shouldn't be mixed with other waste.
5. Store it where kids and pets can't get to it, and clean up drips on the driveway right away.
6. Haul it upright in a bin or box so it can't tip. See hauling sealed containers upright.

Where to take used antifreeze

• Your county or city HHW program. This is the most reliable option. Many areas run a permanent HHW drop-off, and others hold collection days. Find yours through your county solid waste office or Dumpmapper's household hazardous waste guide.
• A transfer station or recycling center. New Hampshire DES says New Hampshire households can recycle antifreeze at their local transfer station, an automotive shop, a motor vehicle recycling facility or an HHW event. Other states set up drop-offs differently, so ask your local site.
• Auto shops, parts stores and recyclers. Some accept used coolant from do-it-yourselfers. Policies vary by store, so call before you go. Many places that take used motor oil don't take antifreeze, and the reverse is also true.

Use the Dumpmapper map to find nearby transfer stations and recycling drop-offs to call. HHW drop-off is often free for residents, but some programs charge or limit how much you can bring. If you're also hauling regular trash on the same trip, the dump fee calculator can estimate that part of the bill.

Spills and common mistakes

• Hosing a spill into the street. That sends it to the storm drain. Soak it up with an absorbent such as cat litter, sweep it up, and ask your HHW program how it wants the used absorbent handled.
• Leaving an open pan out. CT DEEP warns against leaving open containers unattended, and pets can drink from them.
• Dumping it in the trash. Liquids leak out of trash bags. EPA's fact sheet says used antifreeze may not go in regular trash.
• Assuming "non-toxic" coolant is fine to pour out. Propylene glycol is less toxic, but CT DEEP notes it can still contain lead after use. Take it to the same drop-off.

How to Dispose of Antifreeze (Used Coolant) Safely FAQ

Can I pour antifreeze down the drain?

No, not as a do-it-yourselfer. Connecticut DEEP says used antifreeze should never go down a drain, into the sewer or on the ground. Some states allow a sewer discharge only with the sewer authority's prior permission, which isn't something a homeowner should assume. Never send it to a septic system or storm drain.

Where can I dispose of antifreeze near me?

Start with your county household hazardous waste program or a transfer station that accepts it. Some auto shops and recyclers also take used coolant. Call first, because acceptance varies.

Can I mix antifreeze with used motor oil?

No. Keep them in separate containers. Mixed fluids can be refused, and EPA guidance says used antifreeze shouldn't be mixed with other wastes.

Is used antifreeze hazardous waste?

It depends on your state. EPA says there are no federal disposal requirements for used antifreeze, but most states regulate it, and used coolant can contain lead. Treat it as household hazardous waste unless your local program says otherwise.

What container should I use for old coolant?

The original jug if you have it, or a plastic container with a twist cap, labeled with what's in it and the date. Never use a food or drink container.

The bottom line

Catch it, seal it, label it and keep it away from pets. Then take it to an HHW site, transfer station or shop that has said yes. If you have other fluids to get rid of, read leftover gasoline at home and what counts as household hazardous waste. Motor oil has its own recycling guide.

Gear for your dump run

Affiliate disclosure: The links in this section are Amazon affiliate links. As an Amazon Associate, Dumpmapper earns from qualifying purchases, at no extra cost to you. We don't list prices or ratings here because they change. Check them on Amazon.

• Lumax LX-1632 15-quart Drainmaster drain pan and storage container: Catches coolant when you drain it and seals for the drive. Use a dedicated pan for antifreeze, not one that has held oil.
• Hopkins FloTool 10704 Measu-Funnel with on/off spout: Moves used coolant into a labeled twist-cap jug with fewer drips on the driveway.