For the past two and one-half months (starting at app 28,000 miles), I've been attempting to improve my mileage, and I've finally arrived at this conclusion: I used a light foot on the throttle, and eventually the computer must have reprogrammed to my new driving style (for a real improvement in mileage). My first six months ownership average (computer) mileage was 27.2. Then it dropped (over the fall & winter to 25.2). It is now back up to 27.2, but the good part is that each of my last four fill ups showed increasing mileage. Today's fill up indicated 32.6 mpg (miles driven/fuel to fill tank). This was for 337.5 miles and included 150 miles of Interstate driving at up to 75 (flowing with traffic) as well as in town and two lane highway (stop signs, a variety of speed zones from 35 to 55 mph). The car is stock and the tires have 32# of air pressure. I believe that the computer eventually reprogrammed to my new driving style because the increased mileage came slowly at first, but now I am gaining about 1 mpg/fill up. Naturally, this increase in mileage cannot continue. Eventually things will level off, but the computer predicted 507 miles for this tankful (484 for the previous), and so far each time it has predicted increased mileage per tankful, I've gotten better mileage than the previous tankful. Take it for what it's worth.
