During the gas crisis in the 70s you were only allowed 5 gallons of gas every other day. Most of that was used up waiting in line at the station. Cars then weren't known for fuel efficiency. I was working as an auto tech at a dealership about 7.5 miles from home. I used to race bicycles back then, so I decided to just start riding to and from work. The owner let me bring the bike inside, and there were showers and a locker room for the techs to use. A lot of the techs lived within 3 miles of the dealership. They started bringing in old bicycles for me to fix up when work was slow, and eventually about 75% of the techs were riding bicycles to work. The owner saw an opportunity and had a photo of all the techs with their bikes outside the service area and ran an ad in the local paper. "Our technicians know how to save fuel!"