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Featured ethanol fuel?

Discussion in 'Gen 2 Prius Main Forum' started by Jacee, Apr 13, 2018.

  1. Jacee

    Jacee New Member

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    We just bought a Prius from a private party and are wondering what is the best fuel to use. I have read the posts and everyone says 87 octane. The fuel we have out here has 10% ethanol. I recall the previous owner saying that they never used any ethanol fuel in their vehicle. I am wondering if there is a reason for this? Can anyone whose had a Prius longer than we have ( 3 days now) enlighten us on the best type of fuel. Thanks in advance ! Jacee
     
    #1 Jacee, Apr 13, 2018
  2. SFO

    SFO Senior Member

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    Welcome to PriusChat!!

    Where is 'out here', and how many miles are on this 'AA' vehicle? o_O
     
    #2 SFO, Apr 13, 2018
  3. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    10% Ethanol is the most Toyota recommends.

    Ethanol has 30% less energy than gasoline, so 10% ethanol should reduce MPG by 3%. (It costs WAY more than 3% more here, so I would lose money getting better mileage) If you need 3% more power, a quality no ethanol gas may be worth the money.

    Here in MS, the stations advertising no ethanol, are all hole in the wall dives, I would not trust any of them to have quality standards.

    If you want to be kind to your car; look for top tier gas, and use a busy station so the gas has no time to settle. 87 octane is fine, 85 octane above 4500 feet elevation.
     
    #3 JimboPalmer, Apr 13, 2018
  4. wjtracy

    wjtracy Senior Member

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    Everyone uses E10 (10% ethanol) as that is mandated in USA, that is the regular stuff.
    You do not own a flex-fuel Prius, so you cannot use E85...actually you could, but that's a different story.
     
    #4 wjtracy, Apr 13, 2018
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