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  1. 2010-2013 Mazda 3 & Skyactiv Discussion
    Dear Matthew, Thank you for contacting Mazda. In regards to your inquiry, Mazda recommends 87 octane rated fuel for your vehicle with an ethanol blend of no more than 10%. You may also reference page 4-2 in your owner's manual for additional information. Your feedback...
  2. 2010-2013 Mazda 3 Engine and Performance
    The manual for my 2010 Mazda 3 with the 2.5 states your vehicle can only use oxygenated fuels containing no more than 10% ethanol. The EPA recently approved the use of E15 fuel at gas stations. Has anyone used or seen gas stations with Ethanol levels over 10%? I'd rather use 0% Ethanol both...
  3. 2010-2013 Mazda 3 Engine and Performance
    As a usual I though ethanol in the gas made the fuel economy go down. It seems that my 2.5 loves fuel with ethanol though. I get a boost of quite a few MPG's, being 17 and jobless my tank doesnt see full much. The display stays near 27ish compaired to 23 driving my usual school route. Also...
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