Is it really the tires?

Discussion in 'Prius v Fuel Economy' started by Steve48, Jul 15, 2020.

  1. Kenny94945

    Kenny94945 Active Member

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    Even though the OP posted in Jul, I did not see a conclusion, so I'll add some two cent comments.

    OP as you noticed from the above responses, it could be the tires causing the mileage drop.
    Excess ICE idling (or high speed test drives) could also skew you MPG computer calculation.
    From my memory, I believe there was a recent (year 2020) recall (that some reported did decrease MPG) for the invertor (to prevent engine stalling in traffic) that was a software update.

    You could:
    1) Check the treadwear rating on the old versus new tire.
    200 rating is "sticker" than 400 and would reduce mileage IMO.
    High rolling resistance is one of the key tire words for Hybrid's stellar MPG.
    2) As noted, you could increase tire pressure in increments, noting your MPG and center of thread wear.

    Good luck.
     
  2. Tim Jones

    Tim Jones Active Member

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    If you go to the Toyota site you can put your vin # in and see what updates you have or need. They are suppose to check everytime a car comes in.
     
    #22 Tim Jones, Sep 19, 2020
    Last edited: Sep 19, 2020
  3. Steve48

    Steve48 Junior Member

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    Thanks, guys.
     
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