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.

With vehicles powered by electricity and alternative fuels like emission-reducing biodiesel becoming available to drivers everywhere, moves to lessen humanity's reliance on fossil fuels are starting ...

Today, the biggest difference between gasoline brands is the type of fuel-system cleaning additives used. However, the EPA mandates a minimum level of fuel-system cleaning additives, and all gasoline ...

Folks have been experimenting with ethanol in modern combustion engines even when they weren't so modern. Nicolaus Otto, the inventor of the traditional four-cycle engine, used it to power one of his ...

At $2.94 per gallon, Patricia Ann Smith pumped the E85 blend of gasoline and ethanol into her 2001 white Ford Ranger on Wednesday. "It's been a great money-saver for me," Smith said as she kept an eye ...

E85 — aka Flex Fuel — is a domestically produced, renewable, alternative fuel blend consisting of around 85-percent ethanol and 15-percent gasoline. Made for use in specially prepped flex fuel ...

ST. PAUL - The message is loud and clear: Corn-based E85 fuel costs less than regular gasoline. "Any Minnesotan looking to buy a new vehicle should be sure to ask for a flexible-fuel engine, which ...

It’s not every day that a decision by the federal government can bring together environmental groups, cattle ranchers, the automobile industry and gas station owners, all in anger—but that’s biofuel ...

Q: I own a car with an 8-speed automatic transmission and manual shifters. If I am approaching a red light 50-100 yards away, am I better off downshifting or gently applying the brakes? Does repeated ...