I just read an article in Popular Science (or Mechanics) about a guy that is the champ of wringing mileage out of cars with careful driving. I applied some of his techniques for about half of my last tank and got 41.8 MPG driving back and forth to work. All city, bad stop and go on the way home. I usually average 36 MPG with my '96 SL. I might get real serious for a whole tank and see what I can get it up to.