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Octane: 90 vs 87. Worth $.10 per gallon?
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Question
Mike Wallace
I'm not the greatest, or even second greatest, with math so is there a significant performance/mileage benefit of running 90 octane vs. 87 octane?
I have a '06 Kia Sedona (yes, it's a minivan, please be kind) and see that these two octanes are always $.10/gallon apart. What gives? would I be better off using the higher octane?
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