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Drop In Gas Mileage, Needing To Refuel More Often...

Discussion in 'Gen 2 Prius Fuel Economy' started by afutterman89, Jul 14, 2014.

  1. afutterman89

    afutterman89 New Member

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    2006 Prius
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    I have a 2006 Prius with roughly 119,900 miles on it. I have noticed in recent months that I am having to refuel more often, and that my mileage has dropped to about 40 MPG, when before it was close to 45. Any ideas why this is happening?
     
    #1 afutterman89, Jul 14, 2014
    Last edited: Jul 14, 2014
  2. bisco

    bisco cookie crumbler

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    welcome to priuschat! could be your 12 volt battery. but at 200k, it could be a lot of things. what major service have you done to the vehicle?
     
    #2 bisco, Jul 14, 2014
  3. afutterman89

    afutterman89 New Member

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    Actually I mis-read the mileage, it's closer to 119,900, my bad.

    And as far as the service goes, it's never had the hybrid battery replaced, the other battery was replaced after a fender-bender a couple years ago, and its had the water pumps changed a couple of times. As far as I can recall it hasn't had much else done aside from routine stuff.
     
    #3 afutterman89, Jul 14, 2014
  4. bisco

    bisco cookie crumbler

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    you could probably use new plugs. maybe injector cleaning, might need throttle body cleaning. check your maintenance manual for 120k service. check your oil level. start with the easy stuff.
     
    #4 bisco, Jul 14, 2014
  5. cba20k

    cba20k Junior Member

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    I have an 08 Prius with 135k miles that has had routine maintenance done as well, and has also had the water pump replaced, and I've seen a precipitous drop in mpg in the past month from 58 to 48.

    Isn't there a link to the Toyota site that explains the service intervals? If any knows it, could you please paste below?

    Thanks!
     
    #5 cba20k, Jul 27, 2014
  6. bisco

    bisco cookie crumbler

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    don't you have an owners manual?
     
    #6 bisco, Jul 27, 2014
  7. CrazyLee

    CrazyLee Member

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    You can down load the owners manual as well as the service manuals from the internet.
     
    #7 CrazyLee, Aug 3, 2014
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