Gas stations are well integrated into our daily lives as Americans. Except for residents of NJ, where you don't have to pump your own, a gas station can be intimidating with its cryptic displays and a ...

87 octane gasoline, often called "regular" gas, is one of the most commonly used fuels in the United States. But what gives it that 87 rating is a word you've probably heard a time or two: Ethanol.