Scoobynut
Member
^KCampbell said:The specific concern with Ethanol (aside from reduced fuel economy, the fact that it's not carbon neutral during production, and places price competition on a food crop) is Phase Separation. After about 45 days or so, depending on the humidity, the ethanol in blended fuel will have absorbed water to the point where it separates from the gasoline itself. At this point the Ethanol starts to vigorously attack rubber components throughout the fuel system.
It only takes about 2-3 teaspoons of water in a gallon of gas to cause phase separation, so it's a very real problem for vehicles that are infrequently used, or fuel that's stored for long periods in metal tanks.
Kevin
This. Even if this weren't the case, I would still continue my personal boycott of the stuff. I only use non-ethanol in all my vehicles.