Lets make the best real world *MPG* THREAD EVER !!

Read a story a few years back about the design team that did the Valiant. Chrysler execs didn't have much faith in the sales of a small car. So they assigned a small team of engineers and designers to make it happen. They gave them an old warehouse in the boonies. One of the guys was always fiddling with his car trying to improve his mileage. [changing carb jets, timing etc.] Some of the guys got together and would steal a gallon of gas out of his car. Disappointed with his mileage results, the owner would change the settings back too where they were. The next week the guys would add back the gas they took previously. Don't know if he ever figured it out.