Synthetic Oil Life Study

If you drive a car, you may be interested in this http://neptune.spacebears.com/cars/stories/oil-life.html. These guys are running synthetic oil (first they tried Mobil 1, now they are running Amsoil) and taking samples of the oil every 1000 miles and seeing how it holds up. There are a number of different goals of this study.

1. To see how long you can safely run a synthetic oil.
   
2. How do Mobil 1 and Amsoil compare.
   

I've been running oil analysis reports for my Subaru WRX as well which has allowed me to comfortably run oil change intervals of 7500 miles.

The forums at BobIsTheOilGuy are a great resource for those of you interested in automotive lubrication.