How to Dispose of an Old Lawn Mower Responsibly

Quick Answer

Drain the fuel and oil first. Then pick the right path for your mower type. Gas mowers go to a scrap metal yard or a hazardous waste event, never the regular trash. Battery mowers need the battery taken out first, then sent to a battery drop-off point. Mowers that still run can often be sold, given away, or traded in at a store. Many towns also run a free pickup day for small engines. Don’t leave a mower at the curb with a full tank or the battery still inside.

Table of Contents

1. What You Need Before You Start
2. Step 1: Decide If the Mower Is Worth Saving
3. Step 2: Drain the Fuel Safely
4. Step 3: Drain or Contain the Oil
5. Step 4: Remove the Battery (Battery and Riding Mowers)
6. Step 5: Choose a Disposal Path Based on Mower Type
7. Step 6: Strip It for Recyclable Parts (Optional but Worth It)
8. Step 7: Confirm Pickup or Drop-Off Details Before You Move It
9. Common Mistakes That Cause Problems
10. Safety Notes
11. When to DIY vs. When to Call a Professional
12. Troubleshooting: What to Do If Your Mower Won’t Fit the Usual Paths
13. Frequently Asked Questions

What You Need Before You Start

• A container rated for gasoline (a metal or approved plastic gas can)
• A drain pan for oil, plus a funnel
• Work gloves and safety glasses
• A socket wrench set (for battery terminals and any bolt-on parts)
• Rags for spill cleanup
• Your city or county’s waste management website open on your phone, so you can confirm local rules before you move the mower anywhere

You do not need special tools for most of this. A mower that starts and runs takes about 20 minutes to prep for disposal. One that has sat in a shed for three years with a full tank takes longer. Old gas smells bad, so you’ll want to work outside. Set aside a full afternoon if you’re also stripping the mower for parts in Step 6.

Step 1: Decide If the Mower Is Worth Saving

Before you get rid of anything, check if the mower still has value. In our shop, about one in four mowers dropped off “for disposal” just needs a cheap fix. A $15 spark plug, a new air filter, or a quick carburetor clean can bring it back to life ([VERIFY: confirm current internal repair-shop ratio before publishing]).

A mower is worth saving if:

• The engine turns over by hand. Pull the cord slowly with the spark plug wire off. It should move freely, not grind or lock up.
• The deck isn’t cracked or rusted through.
• It’s under 10 years old for gas models. For battery models, the battery still holds a charge.

If it fails all three, skip to Step 2. If it passes, try selling it first. List it as-is with an honest note like “runs, needs a blade sharpen.” A used push mower that runs typically sells for $40-$120, even an old one. That’s more than most scrap yards will pay for the metal.

Good fit for saving: mowers with cosmetic wear but sound engines and decks. Not a good fit: mowers with a cracked block, a seized engine, or frame rust that’s eaten through the deck. Those go straight to recycling.

Step 2: Drain the Fuel Safely

Old gas is the top reason mower disposal goes wrong. Gas left in a mower more than 30 days starts to break down. A full tank turns a “free” disposal into a hazmat problem.

1. Move the mower outside or into a well-ventilated garage. Do not drain fuel near a water heater, furnace pilot light, or any open flame.
2. Disconnect the spark plug wire so the engine can’t accidentally start.
3. Locate the fuel line where it connects to the carburetor, or use the mower’s fuel shutoff valve if it has one.
4. Run a length of clear tubing from the fuel tank outlet (or siphon from the fill opening) into your approved gas container. A turkey baster works in a pinch for small push-mower tanks.
5. Let the tank drain fully. Then run the engine for 15-20 seconds if it still starts. This clears fuel from the carburetor bowl and line.

Time estimate: 10-15 minutes for a push mower, up to 30 minutes for a riding mower with a larger tank. Add extra time if the fuel line is old and brittle, since it may need careful handling to avoid a crack.

Old gas, anything left sitting more than a season, should not go back into your car or another mower. Take it to a hazmat site instead. Most counties run one on a set date. Do not pour it down a drain, onto the ground, or into the trash. It can taint groundwater, which is why every U.S. state treats it as hazardous waste.

Step 3: Drain or Contain the Oil

Gas mowers with a four-stroke engine hold 15-20 ounces of oil in the crankcase. That oil has to come out first. Most scrap yards and pickup crews will turn away a mower that’s still leaking.

1. Tip the mower on its side with the air filter and carburetor facing up, so oil doesn’t flood into the cylinder.
2. Remove the oil fill cap or dipstick.
3. Let the oil drain into your pan for a few minutes, tilting the mower to get the last of it out.
4. Wipe the drain area and reinstall the cap loosely so it doesn’t rattle around.

Used oil is easy to recycle. Most auto parts stores take it for free, no purchase needed. Just bring it in a clean, sealed jug. Don’t mix oil with gas, antifreeze, or other fluids in one container. Mixed fluids get turned away and can’t be reused.

Step 4: Remove the Battery (Battery and Riding Mowers)

This step applies to cordless electric mowers and any riding mower with a starter battery.

For cordless mowers, pop the battery out of its mount. Most have one latch or pull handle. Set it aside on its own. These batteries can’t go in the trash or in scrap metal. They catch fire when crushed or punctured. That’s exactly what happens inside normal recycling gear ([VERIFY: confirm current EPA/state guidance on lithium battery disposal before publishing]).

For riding mowers, the battery is lead-acid. Use a wrench to remove the negative terminal first, then the positive one. These batteries are worth cash almost every time. Auto parts stores and scrap yards typically pay $5-$15 per battery for the lead.

Take batteries to:

• A battery recycling drop-off. Call2Recycle has public bins at many hardware and home stores.
• The store you bought the mower from. Some brands run take-back programs for their own batteries.
• A hazmat site if no store drop-off is nearby.

Step 5: Choose a Disposal Path Based on Mower Type

Once fuel, oil, and battery are out, match the mower to the right path.

Mower Type	Best Disposal Path	What You’ll Likely Get
Gas push mower, non-running	Scrap metal recycler or municipal small-engine recycling day	$0-$10 (scrap steel/aluminum value)
Gas push mower, running	Sell locally, donate to a community garden or school, or trade in at a retailer	$40-$120 resale, or a trade-in discount
Cordless electric mower	Battery removed separately, deck to e-waste or scrap recycler	Small trade-in credit at some retailers
Riding mower, non-running	Scrap metal recycler (they often pick up large items for free)	$15-$40 depending on frame weight
Riding mower, running	Sell locally, or trade in through dealer programs (John Deere, Cub Cadet, and Toro all run seasonal trade-in promotions)	Trade-in credit varies by program and season

Curbside trash almost never takes mowers, gas or electric. The reason is leftover fuel and battery fire risk. Check your city’s bulk pickup rules first. Many require a separate booking and won’t take gas equipment at all.

Good fit for scrap metal recycling: any mower with the engine drained and no battery. Scrap yards pay by weight for the steel deck and aluminum housing. Not a good fit: mowers still containing fuel, oil, or a battery. Scrap yards will turn these away, and some charge a hazardous handling fee if they find residual fluid after accepting it.

Why This Matters More Than It Seems

Run a gas mower for an hour and it can put out about as much air pollution as a car driven several hundred miles. Small engines don’t have the emissions parts cars have used since the 1970s ([VERIFY: confirm current EPA small-engine emissions comparison figure before publishing]). That’s not a reason to feel bad about owning one. It’s the reason disposal matters. A mower leaking oil and gas in a landfill does more harm sitting there than it ever did while mowing.

One quart of used oil can taint up to 250,000 gallons of drinking water once it hits groundwater. That’s why auto parts stores take it for free. It costs them almost nothing to collect, and it keeps a real danger out of the water supply.

Step 6: Strip It for Recyclable Parts (Optional but Worth It)

If you have 30 extra minutes, breaking the mower down first gets you better scrap value. It also keeps more material out of the landfill.

1. Remove the blade (usually one center bolt, held with a wrench while you brace the blade with a block of wood). Steel blades recycle separately from the aluminum deck at a slightly better rate.
2. Pull the wheels off if they’re separate parts. Plastic wheels go in regular recycling if your town accepts rigid plastics. Metal axles go with scrap.
3. Remove the engine if it’s a bolt-on unit (most push mowers use 4 bolts). A drained engine block has real scrap value on its own, often more per pound than the sheet-metal deck.
4. Set the spark plug, air filter, and any belts aside; these go in regular trash since they have no meaningful recycling value.

This step is optional. A scrap yard will still take the whole mower as-is. But splitting out the steel, aluminum, and engine block first usually earns a few extra dollars. Some yards weigh each material on its own instead of paying one flat rate.

Step 7: Confirm Pickup or Drop-Off Details Before You Move It

Every path in Step 5 has its own rules, and calling ahead saves a wasted trip.

• Scrap yards: Call first. Ask if they take lawn gear, since some only take clean metal, not whole machines. Ask if they need the tank fully removed, not just drained.
• Municipal recycling days: These are usually seasonal (spring and fall) and require pre-registration in many towns. Check your city’s public works or sanitation department page.
• Retailer trade-in programs: Bring proof of a new purchase if the trade-in ties to buying a new mower. Standalone drop-off isn’t accepted everywhere.
• Household hazardous waste facilities: These take the leftover fuel, oil filters, and batteries, not usually the mower body itself. Bring fluids in their own sealed, labeled containers.

Common Mistakes That Cause Problems

In the shop, we see the same mistakes over and over:

• Leaving fuel in the tank. This is the top reason a scrap yard or pickup crew turns a mower away on the spot.
• Setting it at the curb without checking local rules. Many cities fine you for dumping gas equipment, even when you just meant it as normal trash.
• Tossing a lithium battery in with mixed recycling. Crushed lithium cells have started fires in city recycling trucks. That’s why battery removal is its own step, not a skip-if-lazy option.
• Assuming a dead mower has no value. Even a seized engine still has scrap value in the steel and aluminum. Skip the scrap yard and you leave money on the table for nothing.

Safety Notes

• Never siphon gasoline by mouth. Use a hand-pump siphon or gravity-drain through the fuel line.
• Work in a ventilated space when draining fuel; gasoline fumes build up quickly in an enclosed garage.
• Disconnect the spark plug wire before doing any work on the blade or engine, even on a mower you believe is out of fuel.
• Wear gloves when handling a mower blade. Even a dull blade edge can cause a deep cut.
• If a battery shows swelling, cracking, or heat, don’t handle it further. Contact your local hazardous waste facility for a damaged-battery pickup instead of transporting it yourself.

When to DIY vs. When to Call a Professional

Most of this process is safe to do yourself with basic tools. Call a professional or a repair shop if:

• The gas tank is cracked or leaking. Draining it yourself risks a bigger spill.
• You’re not sure how to disconnect a riding mower’s battery.
• Rust around the fuel line makes it likely to break apart during draining.
• You have more than one mower and want one pickup instead of several trips.

Many repair shops, ours included, will take an old mower for a small fee. Some take it for free if it has parts worth saving for other repairs. Call first before you haul it yourself.

Troubleshooting: What to Do If Your Mower Won’t Fit the Usual Paths

The scrap yard won’t take it because of a stuck fuel cap. Don’t force it. Take the mower to a household hazardous waste facility instead; they’re equipped to handle a tank that won’t drain cleanly.

No municipal recycling day is scheduled for months. Check if a nearby scrap metal yard takes drop-offs year-round; most do, even without a scheduled town event.

The mower is too heavy to lift alone (riding mowers, zero-turn models). Call the scrap yard or a junk removal service and ask about pickup. Many scrap yards will send a truck for large equipment at no charge, since the scrap value covers their trip.

You can’t find a battery drop-off nearby. Call2Recycle’s website lists drop-off spots by zip code. Most hardware chains, Home Depot and Lowe’s included, keep a battery bin near the entrance, even if it’s not marked for mower batteries.

Frequently Asked Questions

Summary

• Drain the fuel and oil before doing anything else; this is the step that gets skipped and causes the most rejected pickups.
• Remove batteries separately from the mower body; lithium-ion and lead-acid batteries both need dedicated recycling, never regular trash or scrap.
• Match the mower to the right path: sell or donate if it runs, scrap metal recycling or a municipal small-engine day if it doesn’t.
• Confirm details with the scrap yard, recycling program, or dealer before you haul the mower anywhere, since rules vary by location and by season.