does driving slower save gas
Michelle Singletary advises that to save on gasoline, we should, among other things, slow down. Stop speeding. The faster you drive, the more gas you use, the more money you spend. Each 5 mph over 60 is equivalent to paying an extra 10 cents per gallon for gas.... Avoid aggressive driving and quick starts and stops. At highway speeds, you'll lower your gas mileage by about 33 percent.