Ouch. Scary, I'm running my 930 on Castrol GTX - and it only does hard track time.
What oil should we be using to avoid this? I wont have as many options as you guys, so some big brand names would be good.
Alan

I'll be making the switch to full synthetic, gonna have to do a little investigation... have a look here. There's a couple other threads out there, the discussion is debated with passion on the turbo forum. This will get you sttarted!

http://forums.pelicanparts.com/porsche-911-technical-forum/367300-ultimate-motor-oil-thread-why-we-hate-cj4-sm-oils.html?highlight=oil+thread

http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/428244-what-oil-use-930-a.html?highlight=oil