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Mileage drop with new tires

Discussion in 'Prime Care, Maintenance and Troubleshooting' started by High Mileage, Oct 25, 2020.

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  1. Dave deBronkart

    Dave deBronkart Junior Member

    Joined:
    Apr 23, 2018
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    Location:
    Nashua NH
    Vehicle:
    2021 Prius
    Model:
    XLE AWD-e
    OK, study completed, conclusion drawn and confirmed!
    • Baseline mileage with A41 had been 53
    • Michelin Defenders at normal inflation only gave me 45
    • Overinflated the Defenders by 4# and ran for 2600+ miles. 49.8 mpg.
      upload_2024-9-12_21-56-14.png
    • Bought a new set of A41s and installed them yesterday. First 117 miles: 55.0 mpg.
      upload_2024-9-12_22-0-56.png
    It's important to me that everyone I talked to at any garage or tire store knew nothing about this issue. They all just kinda shrugged. Certainly all the tire-store "we've got the right tires for your car" search apps are completely unaware. Big problem!

    I'm leaving on a 1000 mile trip tomorrow - will report back.

    How do we get those apps & in-site search tools to wise up??
     
    #81 Dave deBronkart, Sep 12, 2024 at 10:01 PM
    bisco likes this.
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    unfortunately, they'll never wise up until enough customers demand tyre mpg info, or we have rolling resistance specs from the epa
     
    #82 bisco, Sep 13, 2024 at 2:18 PM
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