Critically, the reason for octane number differences will be explained, with both the chemical composition and the cooling effect of ethanol providing a large advantage. Finally, we'll look at real ...

Pull up to a gas station in Iowa, and you might see E85 priced a dollar or more below regular unleaded. At first glance, this appears to be an easy decision; however, there is a factor that many of us ...

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 ...

Sometimes, drivers don't even realize they own a flex-fuel vehicle. If your car has a small label near the yellow gas cap that says E85 or Flex Fuel, then you're in luck. Obviously, these cars look ...