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  1. Naveed Shaek
    Post

    MPG Drop to 35 MPG after New Battery, EGR Overhaul, and Tires (2010 Five/Tech)

    Thanks for the reply. I just checked my 12V battery using the hidden diagnostic menu and it is sitting at 10.9V when the car is in accessory mode....
    Post by: Naveed Shaek, Jul 5, 2026 in forum: Gen 3 Prius Fuel Economy
  2. Naveed Shaek
    Thread

    MPG Drop to 35 MPG after New Battery, EGR Overhaul, and Tires (2010 Five/Tech)

    Hi everyone, I’m looking for some insight into a recent MPG drop. I have a 2010 Prius Five (Technology Package) with 180,000 miles. I recently...
    Thread by: Naveed Shaek, Jul 4, 2026, 39 replies, in forum: Gen 3 Prius Fuel Economy
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