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Why do I only get around 380 miles range for my Prius 2020 XLE AWD?

Discussion in 'Gen 4 Prius Technical Discussion' started by Tianen Chen, Mar 11, 2022.

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  1. Tianen Chen

    Tianen Chen Junior Member

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    Sounds like you are driving at country-dirt road with a roof box on top.
     
    #41 Tianen Chen, May 26, 2022
  2. bisco

    bisco cookie crumbler

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    i'm not aware of any testing that has shown slow acceleration to be less frugal than fast acceleration.

    there is an efficiency curve for an engine though, if you can find it.

    iirc, it was around 2,000 rpm on the gen2 engine, part of a pulse and glide study
     
    #42 bisco, May 26, 2022
  3. Tianen Chen

    Tianen Chen Junior Member

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    Thanks. I’ll check my alignment, too.
     
    #43 Tianen Chen, May 26, 2022
  4. Tianen Chen

    Tianen Chen Junior Member

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    It looks like my alignment is indeed off as suspected.
     

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    #44 Tianen Chen, May 26, 2022
  5. jdenenberg

    jdenenberg EE Professor

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    I believe that correcting rear alignment requires shims (It did in the Gen2 Prius). A good alignment shop should be able to fix your Prius.

    JeffD
     
    #45 jdenenberg, May 26, 2022
  6. Tianen Chen

    Tianen Chen Junior Member

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    I got my alignment fixed for $157 from Rogers Toyota of Lewiston, ID.
     

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    #46 Tianen Chen, May 26, 2022
  7. bisco

    bisco cookie crumbler

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    excellent. it will hopefully improve your mpg's
     
    #47 bisco, May 26, 2022
  8. CR94

    CR94 Senior Member

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    Tire tread life, too.
     
    #48 CR94, May 26, 2022
  9. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Wayne Gerdes (CleanMPG) was saying, when accelerating, sweet spot on the HSD is 1/2 to 3/4. At least on level roads; on hills you’ve got to go into the red power zone to keep the speedo moving up.
     
    #49 Mendel Leisk, May 27, 2022
    jerrymildred and Tideland Prius like this.
  10. Billy56

    Billy56 Member

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    If you are only getting 47 MPG, you need some serious training on methods of hypermiling......if you really desire to improve. There are tons of tips and techniques here on Priuschat and also on cleanmpg. Your car is capable of about 80 mpg....
     
    #50 Billy56, Jun 11, 2022
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