17mpg on my prius

Discussion in 'Gen 2 Prius Fuel Economy' started by Uwana, Mar 23, 2025.

  1. Uwana

    Uwana New Member

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    2008 Prius
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    XLE
    Hello everyone, I recently purchased a Prius, everything seems ed to be working fine ithe the vehicle. After a month of driving, I noticed that I'm averaging 15-19mpg on the car. I know this is not normal. I've spoken with my mechanic, he says that there's nothing wrong with that number as most Prius's he fixes always hit that mpg, but my guts is telling me that something's off.
    I noticed that when accelerating the car sounds like it struggling to cope. I've done alot of research and can't seem to diagnose the issue. I'm constantly on the look out for error codes but the vehicle hasn't had any pop up.please help!!!!
     

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  2. MAX2

    MAX2 Active Member

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    There are many factors that affect consumption.

    Fuel quality, duration and frequency of trips, driving style, serviceability of all systems in the car.

    For more precise control, you should purchase some device that will read the parameters of your car's operation for further analysis.

    You can install the program on your phone for free. Hybrid Assistant can be a good fit for this.

    Hybrid Assistant
     
  3. dolj

    dolj Senior Member

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    You only drove 10 miles. You are not going to get economy starting from cold and only driving 10 miles. Make longer trips, and don't reset the average consumption after every trip, only after every refill (filling the tank from empty to full) is enough.
     
    Brian1954 likes this.