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Old 08-07-2008, 02:31 PM
o2man98 o2man98 is offline
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Default Re: Flex Fuel 2009 H2 - my interest is up

E85 is less efficient and will cause lower MPG. One must also remember that octane does NOT equal power. Octane rating is simply a resistance to knock. In reality you will make more power running as low of octane as possible without knocking. Higher octane is slower burning.
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