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.
How often should I change my oil? (New to bikes) Hey everybody, I have an '82 Hondamatic CM450A. I changed the oil last May when I got it and my grandpa told me that he only changes the oil on his Honda once a year. Well I'm nearing 2000mi since that oil change and I'm starting to get a bit paranoid. A friend of mine who rides an 80's Yamaha told me he changes his oil every 1000mi.