Maintenance Manual Pages for '01 986(Boxster)

NOTE: The service intervals have been shortened sometime in 2007 to  every 12k for a minor service and every 24k for a major service. So while the pictures and PDF were correct as of the time they were posted, they are no longer correct and should be modified.

And the common expert opinion is oil changes every year or 5k miles whichever is first.

Reference here.

A more readable version in pdf form

Maintenance Pages 6 and 7