Auto Fluids Hazardous Waste Dispose of auto fluids at a Household Hazardous Waste Facility. Used motor oil and oil filters may also be recycled through your community’s residential curbside recycling program or at a certified oil recycling center. Never Dump Down the Drain Auto fluids, such as brake fluid and motor oil, can contaminate lakes and rivers, so never dump them in the trash or down the drain. Instead, dispose of them as hazardous waste.