How to Recycle Motor Oil
Used motor oil from engines that can be re-refined into new base oil, burned for energy recovery, or processed as industrial fuel. Conventional, synthetic, and high-mileage oils recycle together if you keep them free of antifreeze, brake fluid, and solvents.
Quick answer
Used motor oil can be re-refined into new base oil or otherwise recycled under EPA used-oil rules; never pour it down a drain or onto the ground. EPA notes that oil from one DIY oil change can contaminate a million gallons of fresh water. Drain it into a clean, sealable container, keep it free of other fluids, and take it to an auto-parts store (AutoZone, O'Reilly, Advance, NAPA) or service center. Most accept used oil, and often filters, for free.
- Recyclable
- Yes
- Typical value
- Auto-parts stores take used oil at no charge. Some states (notably California collection programs) pay a per-gallon incentive at certified centers; scrap value of drained filters is in the steel.
- Donate / take-back
- Available
- 1Allow engine to cool for 30+ minutes after driving (oil temperature can reach 250°F)
- 2Drain completely into clean, leak-proof container with funnel to prevent spills
- 3Store in original oil container, clean milk jug, or dedicated oil collection container
- 4Keep separate from ALL other automotive fluids (antifreeze, brake fluid, transmission fluid)
- 5Include used oil filter - drain for 12+ hours before disposal
- 6Wipe up any spills immediately with absorbent materials and dispose with used oil
- 7Label container clearly as 'Used Motor Oil' with date of collection
- 8Store on impermeable surface (concrete/asphalt) away from drains and water sources
- Auto parts stores (AutoZone, O'Reilly, Advance Auto Parts) - free in many locations
- Quick-lube shops (Valvoline Instant Oil Change, Jiffy Lube)
- Service stations and gas stations with automotive services
- Municipal recycling centers and household hazardous waste facilities
- Some warehouse clubs and retailers with automotive departments (call first)
- Auto dealerships and independent repair shops
- Fire stations in some communities that host collection (local and uneven; confirm)
Never mix used oil with antifreeze, brake fluid, solvents, or gasoline. Even a small amount of the wrong fluid can knock the whole batch out of used-oil recycling and into hazardous-waste handling. Puncture and drain oil filters for 12+ hours, then recycle the steel filter with scrap or a store program that takes filters (O'Reilly notes filters can hold about 10 oz of oil even when 'drained'). Household DIYers are generally outside EPA used-oil business rules, but retail collection limits still apply. Call ahead if you have more than a few gallons. PaintCare does not take motor oil.
EPA notes that used oil can be re-refined so the oil resource lasts indefinitely, and re-refining takes about one-third the energy of making lubricant from crude. It takes 42 gallons of crude oil, but only one gallon of used oil, to produce about 2½ quarts of new lubricating oil. Dumping oil on the ground or down a drain contaminates soil and water and is illegal. Not every gallon is re-refined; some is processed for energy recovery under EPA used-oil rules.
- Extended oil change intervals with synthetic oil (7,500-10,000 miles vs 3,000-5,000)
- High-quality oil filters to extend oil life
- Oil analysis testing to determine optimal change intervals
- Professional oil change services with guaranteed recycling
- Bulk purchasing to reduce packaging waste
Accepted
- All motor oil types (conventional, synthetic, full synthetic, high-mileage)
- All viscosity grades (0W-20, 5W-30, 10W-40, etc.)
- Motorcycle and small engine oil
- Marine engine oil (2-stroke and 4-stroke)
- Hydraulic oil and gear oil from vehicles (where the store accepts oil-family fluids)
- Used oil filters (drained for 12+ hours)
- Oil-soaked absorbent materials in sealed containers
Not Accepted
- Oil mixed with antifreeze, brake fluid, or other automotive fluids
- Oil contaminated with gasoline, solvents, or paint
- Oil with significant water contamination (over 5%)
- Industrial oils, cutting oils, or hydraulic fluids from non-automotive sources
- Oil filters that haven't been properly drained
- Containers with free-flowing oil residue
- Oil contaminated with hazardous materials or unknown substances
Estimated value: Auto-parts stores take used oil at no charge. Some states (notably California collection programs) pay a per-gallon incentive at certified centers; scrap value of drained filters is in the steel.
Manufacturer/Retail Take‑Back
- Heavy metals (lead, zinc, copper from engine wear)
- Polycyclic aromatic hydrocarbons (PAHs) - carcinogenic compounds
- Benzene and other aromatic hydrocarbons
- Additive packages with sulfur compounds
- Detergent and dispersant chemicals
Can I mix different types of motor oil for recycling?
Conventional, synthetic, and high-mileage oils can be mixed for recycling. Never mix motor oil with antifreeze, brake fluid, gasoline, or solvents.
How long can I store used motor oil before recycling?
Indefinitely if the container stays sealed and uncontaminated. For households, keep volumes modest and store on concrete or asphalt away from drains. Use secondary containment for larger jugs.
What should I do if I accidentally mixed motor oil with antifreeze?
Stop adding more oil. The mixture usually cannot go through used-oil recycling and must go to a household hazardous-waste facility. Do not try to separate mixed fluids yourself.
Can I get paid for my used motor oil?
Sometimes. California has paid incentives at some certified collection centers, and a few stores offer credit. Most auto-parts drop-offs are free rather than paying you.
Is synthetic oil better for the environment when recycled?
Recyclers handle synthetic and conventional the same way. Synthetic's longer change intervals mean you generate less used oil over time.
What happens during the re-refining process?
Used oil is cleaned of water, dirt, and additives so it can become base stock for new lubricants or be processed for fuel. Re-refining is the preferred loop when available because the oil becomes lubricant again; energy recovery is also allowed under EPA used-oil rules.
Can I recycle oil that's been sitting in my garage for years?
Yes, if it stayed sealed and uncontaminated. Sediment is normal. Rusted or leaking containers need careful transport and may belong at an HHW site.
How do I handle oil filter recycling?
Puncture and drain filters 12+ hours. Add the drained oil to your used-oil jug. Recycle the empty steel filter as scrap metal or through a store program that takes filters.
What containers are safe for storing used motor oil?
Original oil bottles, clean plastic jugs, or dedicated oil containers. Label them, keep lids tight, and store on concrete or asphalt, not on soil or near storm drains.
Can businesses recycle motor oil differently than individuals?
Businesses that generate used oil follow EPA used-oil management standards and may need transporter or generator paperwork. Many recyclers offer pickup for shops.
- How to recycle Car Batteries
- How to recycle Tires
- How to recycle Antifreeze/Coolant
- How to recycle Brake Fluid
- How to recycle Catalytic Converters
- How to recycle Transmission Fluid
- How to recycle Automotive Glass
- How to recycle Car Seats & Interior Textiles
- How to recycle Automotive Electronics
- How to recycle Automotive Air Filters
Recycling centers that accept Motor Oil
RecycleFind lists recycling centers that accept motor oil. Open a listing for hours, contact info, and directions.