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Only getting about 30 mpg 2010 Prius with sunroof

Discussion in 'Gen 3 Prius Fuel Economy' started by Prius2010driverdude, Nov 25, 2024 at 11:46 AM.

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  1. Prius2010driverdude

    Prius2010driverdude New Member

    Joined:
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    Location:
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    Vehicle:
    2010 Prius
    Model:
    Four
    Hello. I bought the car used. I recently had the main battery replaced. I thought this would improve the mpg but it hasn’t made a difference. The smaller battery was replaced about a year ago.

    thanks for your help and let me know if you need more details.
     
    #1 Prius2010driverdude, Nov 25, 2024 at 11:46 AM
  2. bisco

    bisco cookie crumbler

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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    mileage?
    service records?
    is it a new oem hybrid battery?
    any trouble lights?

    air filter
    throttle body
    dragging brake
    plugs
    injectors
    coils
    tyres and pressure
     
    #2 bisco, Nov 25, 2024 at 8:38 PM
  3. Prius2010driverdude

    Prius2010driverdude New Member

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    Location:
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    Vehicle:
    2010 Prius
    Model:
    Four
    Hi. It’s a refurbished battery with I believe 30,000 miles on it. No warning lights. Everything else seems to be fine shocks, tires etc
     
    #3 Prius2010driverdude, Nov 25, 2024 at 8:59 PM
  4. Eddie25

    Eddie25 Active Member

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    Location:
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    Vehicle:
    2011 Prius
    Model:
    III
    First thing I would do is jack up the rear (there's a convenient rear-center jack point) so the tires were off the ground and test for wheel drag. Spin the wheels by hand and they should spin around a few times on their own, at least. There can be issues with calipers not retracting properly.
     
    #4 Eddie25, Nov 26, 2024 at 7:30 PM
  5. bisco

    bisco cookie crumbler

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    Plug-in Base
    driving style?

    terrain?

    climate?
     
    #5 bisco, Nov 26, 2024 at 8:10 PM
  6. BiomedO1

    BiomedO1 Senior Member

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    Location:
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    Vehicle:
    2021 Prius Prime
    Model:
    LE
    I got 30 mpg in my 76 Honda civic 5-speed w/1.5L engine. IMHO; you've got issues, so take it to a Prius specialist before dumping any more money into it. FWIW; most ICE cars of similar size, built after 2010 will do 35-40 mpg - without the added expense and weight of a hybrid system.
     
    #6 BiomedO1, Nov 26, 2024 at 10:04 PM
  7. Mendel Leisk

    Mendel Leisk Book Cover Judge

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    Vehicle:
    2010 Prius
    Model:
    Touring
    I think bisco meant the miles on the odometer. That’ll display for 30 seconds or so, every time you shut down.
     
    #7 Mendel Leisk, Nov 26, 2024 at 10:49 PM
  8. bisco

    bisco cookie crumbler

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    yeah, not expecting any more answers
     
    #8 bisco, Nov 27, 2024 at 1:29 PM
    Mendel Leisk likes this.
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