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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
    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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    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
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    There is only a 7.3% difference in circumference between those 2 tire sizes.
     
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