Responsible, think-ahead driving makes you a better driver—but it also helps to be relaxed. The Discovery Channel’s MythBusters team tested the hypothesis that a car gets better gas mileage when you are driving relaxed. They had the same drivers drive the same course once when they were very relaxed, and once when they were extremely agitated. They showed that driving while relaxed improved gas mileage significantly. No big surprise, since the relaxed drivers weren’t taking out their aggression on the accelerator.
