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.
Thread: Porsche Maintenance Schedule. Porsche Maintenance Schedule Does anybody out there know of a motor oil (real or synthetic) that will last 20,000 miles. If you do, send a 55 gallon drum of the stuff. Does Porsche really expect us to believe we should follow their maintenance schedule and change our oil ever 20,000 miles.