If u check the Chevron site, the following links will tell u that :
1) Chevron uses ethanol as an oxygenate,
2) Oxygenate reduces gas mileage.
So what is the point of Ethanol ?
Line the producers pocket !
http://www.chevron.com/products/tips...&aID=17&cID=21
http://www.chevron.com/products/tips...&aID=18&cID=21
then, don't forget the 60 minutes report on Ethanol.
http://www.cbsnews.com/stories/2007/...ag=mncol;lst;4
From CBS News article;
"Ethanol is much less efficient, especially when it is made from corn. Just growing corn requires expending energy — plowing, planting, fertilizing and harvesting all require machinery that burns fossil fuel. Modern agriculture relies on large amounts of fertilizer and pesticides, both of which are produced by methods that consume fossil fuels. Then there's the cost of transporting the corn to an ethanol plant, where the fermentation and distillation processes consume yet more energy. Finally, there's the cost of transporting the fuel to filling stations. And because
ethanol is more corrosive than gasoline, it can't be pumped through relatively efficient pipelines, but must be transported by rail or tanker truck.
In the end, even the most generous analysts estimate that it takes the energy equivalent of three gallons of ethanol to make four gallons of the stuff. Some even argue that it takes more energy to produce ethanol from corn than you get out of it, but most agricultural economists think that's a stretch."