Wheres my fuel mileage gone?

Discussion in 'Gen 2 Prius Fuel Economy' started by jjltthomas, Jul 2, 2017.

  1. jjltthomas

    jjltthomas Junior Member

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    Was getting almost 600 miles to tank of gas. Now getting 250, 300 if lucky. Car runs fine. Whats going on?


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  2. bisco

    bisco cookie crumbler

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    probably your tank bladder. have you tried calculating mpg's by the fill up, instead of mpt?
     
  3. 05PreeUs

    05PreeUs Senior Member

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    MPG is not a measure of Miles Per TANK, but Miles Per Gallon.

    As bisco indicated, you may have a tank bladder or level sensor issue. There is a DIY fuel level sensor calibration procedure posted on the 'net. Bring a thermos of coffee and a dozen doughnuts, because as I read it (some time ago) it could take a while to complete.
     
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  4. jjltthomas

    jjltthomas Junior Member

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    I can't seem to locate that article. Anyone got a link?


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  5. bisco

    bisco cookie crumbler

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    start with the low hanging fruit, you won't need the donuts.:cool:
     
  6. Sam Spade

    Sam Spade Senior Member

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    First you need to calculate miles per gallon; miles per tank is a useless figure because there are too many variables.
     
  7. CoastRider

    CoastRider Active Member

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    You guys are always making me hungry! ;)

    image.jpg
     
  8. 05PreeUs

    05PreeUs Senior Member

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    That

    is

    just

    not

    nice!
     
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