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First Visit to Dealer...MPG down

Discussion in 'Gen 2 Prius Fuel Economy' started by kathyb, Jun 30, 2008.

  1. kathyb

    kathyb New Member

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    2008 Prius


    I just brought my 6 month old Prius to the dealer. They said no tire rotation since I only had 1800 miles on the car....my average MPG was at 37 since I have been doing short trips.... they changed the oil and when I drove off the lot I looked down and it was at 28.8 mpg!!
    Has this happened to anyone else when they received their first oil change?
     
    #1 kathyb, Jun 30, 2008
  2. Sheepdog

    Sheepdog C'Mere Sheepie!

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    I just had my 5K service and yes I noticed that my usual 55 mpg ratings dropped to around 50. In my case I believe it because of the tire rotation of the fronts to the back. The rears might be more edgy and need a bit of wearing in like the fronts were.

    One would think new oil would be slippery and make for better mpg but I havent seen that. did theya djust your breaks or change the alignment?
     
    #2 Sheepdog, Jun 30, 2008
  3. Prius 07

    Prius 07 Member

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    Hi Kathy,

    Check for:
    1. oil overfill and if this is the case take it back to the dealer and have them take the extra oil out.
    2. also, check your tire pressure and adjust as required
    If you drove in the dealer with 37 MPG on your display and right after you took the car back it showed 28.8 MPG then the dealer probably took your car for a road test which dropped your MPG.

    Good luck,
     
    #3 Prius 07, Jun 30, 2008
  4. Sheepdog

    Sheepdog C'Mere Sheepie!

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    Yes I saw a tech race off the lot in a car while I was there. They go quick to get the ride over with.
     
    #4 Sheepdog, Jun 30, 2008
  5. sdtundra

    sdtundra Senior Member

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    2011 Prius
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    Two
    I took mine in for the first oil change at 4700 miles because of a trip i would be taking. My average MPG dropped from 48 to 44.7. Same route, driving style...might have to check the oil level
     
    #5 sdtundra, Jun 30, 2008
  6. richard schumacher

    richard schumacher shortbus driver

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    Or they left it running while working on it. Reset the MFD and your MPGs should jump right back up.
     
    #6 richard schumacher, Jun 30, 2008
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