Quote:
	
	
		| 
					Originally Posted by JOC IN IL  Is that same socket for  2003 Boxster 5 spd Trans.?
 I'm newbie I just purchased this car 3 months ago has 71K miles no service record or one's manual. When do I replace the Trans. Fluid? at 100K ?
 | 
	
 
According to Bentley should be the same socket.
On how frequently to change the transmission oil opinions vary.  The Bentley manual (which I assume is based on Porsche recommendations) says only every 90k miles.  Wayne, in his 101 Projects book, recommends every 30k miles.  I tend toward somewhere in between.