Hazardous waste is waste that poses substantial or potential threats to public health or the environment. In the United States, the treatment, storage, and disposal of hazardous waste is regulated under the Resource Conservation and Recovery Act (RCRA).
Porsche recommends that the oil in the Boxster be changed every 15,000 miles as a part of the normal maintenance procedure. The recommended oil is Mobil 1 comes in several different grades. If you wish to change your oil more often and want to avoid some of the expense associated doing so, you can change it yourself.
Use the the same brand and viscosity of oil every time and change no matter what! Also change it according to your ownerâs manual. My 09 Mustang GT recommends to change it every 7500 miles (this varies by climate/driving conditions). I choose to change mine every 6000 miles.