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can you help with this?

vw754 Jun 18, 2007

  1. vw754

    vw754 vorsprung Durch Technik

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    I HAVE CHANGED TO THE BIGGER 235/45/17'S
    WHAT I WANT TO KNOW IS WHAT DIFFERENCE WILL IT MAKE TO MY M.P.G,WILL MY TRIP READ MORE OR LESS? MY ORIGINAL SIZE WAS 195/65/15.


    Tire Size Comparison

    Specification Sidewall Radius Diameter Circumference

    Revs/Mile Difference 195/65-15 5.0in 12.5in 25.0in 78.5in 807 0.0%

    235/45-17 4.2in 12.7in 25.3in 79.6in 796 1.4%
     
  2. Ess_Three

    Ess_Three Active Member

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    The trip should read the same as it's calculated off injector pulse width, and that won't change.

    Your MPG will likely drop slightly, as you have much more rolling resistance.

    Your speedo will be very slightly more accurate.
     
  3. Caesium

    Caesium My BM is fixed! VCDS Map User

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    Yup
     

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