Thought you guys would find this interesting...
Brought the Boxster in for an oil change on Saturday to the independant mechanic that works on my Mercedes and he informed me that they use Elf 5W-40 rather than Mobil One :
http://www.roadrunner-region-pca.org/Porsche_engine_oil_article.pdf
Charged my $100 for the oil change. I was a little worried about not using Mobil One until I got home and did some searching around on the internet.
I wasn't aware that there are other "Porsche Approved" oils other than Mobil One.
Nick