2010 Prius’s mileage going South

Discussion in 'Gen 3 Prius Fuel Economy' started by Norryboy1a, Feb 2, 2020.

  1. bisco

    bisco cookie crumbler

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    interesting. i wonder what higher octane accomplishes? i'll have to try a tank, i wonder if it would get me from the 60's into the 70's...
     
  2. Norryboy1a

    Norryboy1a Junior Member

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    I think it could be that the injectors are dirty/clogged. Not sure. But, I am glad this seems to work.
     
  3. Grit

    Grit Senior Member

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    While your at it, throw in some 0w-16 engine oil.
     
  4. Norryboy1a

    Norryboy1a Junior Member

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    If I can find it, I’ll try some
     
  5. Grit

    Grit Senior Member

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  6. ASRDogman

    ASRDogman Senior Member

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    A fluke. Either the previous fuel you had gotten was bad, and putting in good fuel diluted the bad,
    and now it's more burnable.

     
    Grit likes this.
  7. Eric34

    Eric34 New Member

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    Agreed with al you said. I have done exactly the some way you have done it. It took exactly same amount time. 25 min job.
     
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  8. ASRDogman

    ASRDogman Senior Member

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    If someone has not done a lot of work on cars, it will take longer. And that's not a problem.
    As long as it's done right, and goes back together okay.

     
    Mendel Leisk likes this.
  9. Mendel Leisk

    Mendel Leisk Senior Member

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    That's me, lol.
     
    #29 Mendel Leisk, May 6, 2020
    Last edited: May 6, 2020
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