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What grade gasoline do you use

Discussion in 'Gen 2 Prius Fuel Economy' started by priussoris, Apr 13, 2007.

  1. DIV

    DIV New Member

    Joined:
    Feb 23, 2009
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    Location:
    Seattle
    Vehicle:
    2009 Prius
    well, with over 300 Miles, I've dropped down to 45.5, but still much better than the 42 I was working towards with 87 octane. I'll switch back to 87 for my next tank and I'll report what happens. Then I'll try mid-grade 89.