...you very very reluctantly turn on the A/C for a mile in town and a mile on the freeway, and use the cruise control for a mile on the freeway just to verify that it works on your new car, and as soon as that mile is up, you say, "DONE!" and shut it off.
...you're happy when you follow behind an F250 and see the instant MPG on the SG go up, then another 3/4 ton pickup pulls behind and it goes up more.
