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Improve 70k prius mpg?

Discussion in 'Gen 3 Prius Fuel Economy' started by Darklandscape, Sep 13, 2022.

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  1. nicoj36

    nicoj36 Active Member

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    Yes that is fine. And no you don't need to get an alignment before performing the reset. What it does is it also resets the ECU. There's a guy here who was getting low 40s and after performing the reset, his MPG went back up to 53mpg. Just do it, it's completely harmless.
     
    #21 nicoj36, Sep 14, 2022
  2. nicoj36

    nicoj36 Active Member

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    Yes that is fine. And no you don't need to get an alignment before performing the reset. What it does is it also resets the ECU. There's a guy here who was getting low 40s and after performing the reset, his MPG went back up to 53mpg. Just do it, it's completely harmless.
     
    #22 nicoj36, Sep 14, 2022
  3. Darklandscape

    Darklandscape Junior Member

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    Hi I already reset the ecu by disconnecting the battery for 10 minutes? Is this the same thing or does it also do something else?
     
    #23 Darklandscape, Sep 14, 2022
  4. nicoj36

    nicoj36 Active Member

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    Not the same. Just do it, it takes 2-3 minutes. Read this thread Lost 10mpg After Replacing 12V Battery | PriusChat
     
    #24 nicoj36, Sep 14, 2022
  5. Darklandscape

    Darklandscape Junior Member

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    I jacked up the rear and tested the wheels they seemed to spin perfectly fine. Can pm you a vid if you want.
    I did notice what sounds like to be the front breaks squeeking when I'm coming to the end of a stop or breaking harder.
     
    #25 Darklandscape, Sep 15, 2022
    Mendel Leisk likes this.
  6. Darklandscape

    Darklandscape Junior Member

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    I did it, but will need to drive a good amount to see if there is a improvement.
    I am getting an allignment tomorrow because car pulls to the right especially at faster speeds.

    A theoretical question, if you had the worst and cheapest tires possible on your prius up to how much mpg could your prius loose.
     
    #26 Darklandscape, Sep 15, 2022
  7. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    How worn are the tires? I’m NOT an expert; this just happened to one of our cars years back: they “might” develop a wear patttern called conicity, which can cause pull to one side. Diagnosis is typ by swapping fronts side-to-side. If pull is gone that supposedly confirms.
     
    #27 Mendel Leisk, Sep 15, 2022
  8. bisco

    bisco cookie crumbler

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    i would say tires can cost you up to 5-6mpg
     
    #28 bisco, Sep 15, 2022
  9. Darklandscape

    Darklandscape Junior Member

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    I just got these 4 tires a week ago or so. Michelin defenders. At the allignment shop I learned that the front right wheel was 1 inch behind the left on the sub frame, this happened because I ran over a curb with the right wheel and blew the tire. So I had that fixed and did the alignment, much better now.
     
    #29 Darklandscape, Sep 16, 2022
    bisco and Mendel Leisk like this.
  10. ASRDogman

    ASRDogman Senior Member

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    So the control arm was damaged...... Hopefully not too expensive.

     
    #30 ASRDogman, Sep 16, 2022
  11. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Body shop looked it over?
     
    #31 Mendel Leisk, Sep 16, 2022
  12. Darklandscape

    Darklandscape Junior Member

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    Yes frame and allignment shop
     
    #32 Darklandscape, Sep 16, 2022
    Mendel Leisk likes this.
  13. Darklandscape

    Darklandscape Junior Member

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    #33 Darklandscape, Sep 16, 2022
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