Used Motor Oil
Used Motor Oil and Tires
Motor oil and anti-freeze not properly disposed of can pollute groundwater, harm San Francisco Bay and place people and pets at risk. You should never pour used oil or anti-freeze on the ground or down a storm drain, nor should it be placed in refuse or recycling containers. 
Curbside Used Motor Oil and Filter Recycling
Free containers for recycling use motor oil and filters are available to all Union City and Hayward residents. Please all Tri-CED at (510) 429-8030 or (510) 537-9963 for special oil containers and bags for your oil filters. You may place a maximum of two fully sealed, one-gallon plastic containers of uncontaminated (meaning not mixed) used motor oil at curbside on your designated pick-up day.
Free Drop Off
The Alameda County Household Hazardous Waste Program also will accept a maximum of five gallons of used motor oil, filters anti-freeze and batteries. When recycling a used oil filter, be sure to drain it first, place it in a leak proof, tightly sealed plastic bag. Help avoid contamination by not mixing used motor oil with any other automotive products such as gasoline, solvents, antifreeze, and cleaners.
Fremont Facility (operated by BLT Enterprises)