Did you know that one quart of oil can pollute 250,000 gallons of water? A clean ocean and healthy rivers and beaches are important to Orange County. Help prevent water pollution by taking your used oil for free to one of the many Certified Used Oil Collection Centers throughout Orange County. All Certified Centers will accept uncontaminated used oil from the public absolutely FREE during normal business hours. Drain your oil into a clean container with a tight fitting lid and don't forget to bring your used oil filters in for recycling, too. There is no I.D. or paperwork required to participate. For more information please visit OCUsedOil.com.