EDIT : I totally support altenative fuels, and don't want to come off wrong. I just don't want to be the duped into supporting something which is really a political ploy to sell more oil. I recently began filling up with gasoline with a 10% mixture of Ethonol ( or so it says at the pump. ) My mileage has dropped from around 35- 38 MPG, to somewhere around the mid to high twenties. I had thought something was wrong with the car and gave it a tune up to no avail. Then I remembered the label at the gas pump that stated " This gas contains a 10% Ethonol mix " I knew that my mileage would take a hit from having ethonol in the gas, but not something as drastic as this. My question is this : Since I now travel less miles on a tank of gas, I am also burning more toxic gasoline per mile traveled. So ..... isn't this really defeating the purpose of the emissions argument ? I just had my emissions tested and the car is cleaner - but at what point will this outweigh the fact that more fuel is used ( thereby creating [I]more [/I]of those cleaner emissions ! ) By the way : Consumer Reports has a magazine out now with the headlines reading " The Ethonol Myth " Previously, I had noticed reviews in CR of hybrids not getting the touted MPG figures and bad reviews of hybrids due to the fact that the few thousand dollar premium that is paid for a hybrid is not made up in fuel savings for years to come. Nowhere in the CR article were emissions reductions an issue. I therefore thought that the ethonol article in the current issue was yet another write up which counts pennies instead of emissions. As I read the article, this was indeed an issue which was brought up ( Your mileage drops so you use more gas ...paying more pennies per gallon traveled. ) ... BUT, I was also glad to see that CR had shown how that todays auto manufacturers and politicians are bedfellows when it comes to ethonol and pulling the wool over the publics eyes. What CR basically said, was that , as I have seen, more fuel used means more pollution - even if it is 'cleaner' pollution. Add to this the fact that most flex-fuel vehicles made today are gas hogs anyways and the emissions problem gets even worse ... and certain people get rich off of it while getting a 'clean' image to boot . A good read.