Originally Posted by da_bull
The rest of the article is a good read, I like the challenge of bettering your gas mileage with the next tank. That would keep you more aware of the fuel compsumption you are using.
I've been doing that all along, ever since I got my E46. Since there is a computerized display of my MPG, I try to see how accurate it is and also try to beat whatever I got the previous tank (just as mentioned in the article).
BTW, the computer on my car is off by 2MPG, where it would read 28, I would calculate 26MPG. The most that it has ever displayed is ~34MPG.