Quote:
Originally Posted by RedDog
Who cares about ethanol free 91.
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Good point. Most people don't care. But, there are countless sites and threads that discuss the advantages of using ethanol-free gasoline in our engines. For just a few cents more per gallon, it's worth it to me.
Here are some quotes to consider:
"The first thing to understand about ethanol is that oil and water don’t mix. Ethanol is water based while gasoline is made from oil. The kind of ethanol added to gasoline is anhydrous, meaning no water. If there were water in it, the ethanol will not mix with gasoline. Then even after it’s mixed, if the ethanol comes in contact with water, it will attach to it and sink to the bottom of the tank, like vinegar in an oil and vinegar salad dressing."
"Although ethanol does reduce the toxicity of car exhaust, it can also be very corrosive. Ethanol can absorb water and dirt very easily, and if those contaminants are not filtered out successfully, they can cause damage and corrosion inside the engine block. Fuel efficiency is also a consideration when considering the advantages of ethanol fuel. Ethanol, at least in its present form, does not appear to provide the same fuel efficiency as gasoline."
"The primary downside of adding more ethanol to fuel—aside from issues relating to corn crops and food supply—is that it lowers the actual energy content of gasoline. According to the U.S. EPA, vehicles will typically get three to four percent fewer miles per gallon on E10 than on what it terms 'straight gasoline.'