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Whats my REAL MPG

Discussion in 'Wheels & Tires' started by iTz IAN, Oct 1, 2012.

  1. Oct 1, 2012 at 3:30 PM
    #1
    iTz IAN

    iTz IAN [OP] Well-Known Member

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    Ian
    Santa Barbara,CA
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    4x4 TRD FTW
    Stock my taco has 265/70/16 and now it has 285/75/16 with 50% tread so I took a 1/2in off when calc the final size

    right now when I calc my MPG I get 17 but when add that my tires are 17% bigger I add about 3MPG so I am really getting 20MPG, is this right???
     
  2. Oct 1, 2012 at 4:23 PM
    #2
    rondog

    rondog your TW web developer!

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    Ronnie
    Escondido/San Diego
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    Total Chaos LT, 2.5x8" Fox coilover, 2.5x8" Fox triple bypass, GIANT SUA rear LT, 2.5x18" Fox triple bypass, 285/70/17 Toyo AT2, Glassworks all around, 4x Eagle Eye HIDs
    your math just doesn't seem right..I failed math in high school though so don't listen to me
     
  3. Oct 2, 2012 at 5:50 PM
    #3
    iTz IAN

    iTz IAN [OP] Well-Known Member

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  4. Oct 2, 2012 at 6:23 PM
    #4
    tomtom

    tomtom Well-Known Member

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    The Desert SW
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    03 Tacoma TRD
    OME lift w/ 882s and Dakar leaf packs, Elite front and rear bumpers, Rocky Road Rock Sliders
    Going from 31" dia. tire to 32" dia tire gives ~3% increase in circumference. So for every mile traveled on the odometer, you've actually traveled 1.03 miles.
     
  5. Oct 2, 2012 at 7:05 PM
    #5
    TherealScuba

    TherealScuba Well-Known Member

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    Stephen
    Austin, Texas
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    There is only a 7.3% difference in circumference between those 2 tire sizes.
     
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