Used fluids such as engine oil, transmission fluid, antifreeze and brake fluid are hazardous wastes and must be properly disposed. Before draining any fluids, consult with local authorities; in many areas, waste oil, etc. is accepted as a part of a recycling program. A number of service stations and auto parts stores are also accepting waste fluids for recycling.
Familiarize yourself with the recycling centers policies before draining any fluids, as many will not accept different fluids that have been mixed together, such as oil and antifreeze.