Let's try one more time for the dim witted DM readers. Ethanol has almost zero to do with climate change apart from the fact it requires a little less fossil fuel use, hence the loosely applied term "green". It causes the same levels or more pollution when burned. It is not suitable for use in older vehicles before 2000 or smaller engines on lawnmowers and the like, it perishes the seals and gaskets. It only has a shelf life of 90 days after which it can become corrosive even to engines built for its use. It will not affect performance in modern vehicles and the difference in mileage is not noticeable. Whoever is in office and unless hydrogen fuels are developed or every vehicle is converted to CNG the UK WILL get ethanol in fuel, every other advanced nation is using it. Vehicles built after 2007 will run on 15% ethanol or E15. E10 is currently required in the US per the EISA law signed by G W Bush in 2007 with a requirement for a step up to E15 by 2016 to cut down on oil imports.

- Grasshopper Farmer , Sandburrville, 13/3/2013 00:36