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.
Who the Fuck changes oil on a Honda every 10k miles. If your wanting your engine to last less than 100k miles, do that. As an ASE certified tech, I reccomend if your using standard motor oil, change every 3000-3500 miles. If your using partial synthetic, do every 5000 miles.