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Message: <blockquote data-quote="Schwepps" data-source="post: 332478" data-attributes="member: 3592">Thanks for the informative article sachs! Good one, except it doesn't pick up on the point that V-Power is a different hydrocarbon composition from normal unleaded petrol, giving it a higher energy content. This is in fact more important than the RON factor, as our V-Power has the same RON as our Super unleaded.It also incomplete in describing ethanol mix pros and cons. Correct that it gives out less greenhouse gases on burning, but doesn't mention that it gives out more in the making. Proponents argue that the extra greenhouse gases produced are absorbed by the corn/cane/sorghum fields producing the feedstock, but opponents argue that those fields would be there anyway, and it's a choice of using their produce for food or fuel. It also doesn't mention that burning ethanol produces more polluting nitrous oxides than petrol.</blockquote>