There is an article in this month's roundel comparing a journey from NJ to OH using Eco Pro vs. not in a 528. I believe the driver got about 3 MPG better. Including speeds up to 75 MPG.
Sophisto Grau / Oyster - Black Nappa, Anthracite Wood Gone but not forgotten.
Heaven is where the police are British, the cooks are French, the cars are German, the lovers are Italian and it is all organised by the Swiss.
Hell is where the police are German, the cooks are English, the cars are French, the lovers are Swiss, and it is all organised by the Italians