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  1. E25 Cobalt

    All about MPG
    I was wondering if anybody has tried E25 gasoline in their Cobalt. My local ethanol gas station offers both E85 and E25 at a significant discounts over the E10 that you can get everywhere. I am not talking about putting E85 in by cobalt, just 25% ethanol in my 2006 non-modded 2.2 Ecotec. From...
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