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Different snow tire size than OEM tires

Discussion in 'Gen 3 Prius Technical Discussion' started by Jim H, Dec 5, 2010.

  1. Jim H

    Jim H New Member

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    2010 Prius
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    III
    I have almost new snow tires (Blizzak WS60) from my previous vehicle, but they are slightly smaller than the OEM tires that came w/ my new Prius. Snow tires are 195/60R15 88R versus the Prius's P195/65R15 89S. If I did my calculations right, the snows are about 3% smaller in diameter. (I presume the slight max load difference (1235 vs 1278 lbs) is not an issue).

    If I put these snows on will I encounter any problems?

    Thanks in advance for any suggestions.

    Jim H (new Prius owner and loving it :)
     
    #1 Jim H, Dec 5, 2010
  2. josh2008

    josh2008 Active Member

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    You will be just fine. I'm running some studded 185/65/15's (leftover from 2nd gen Prius) which are same diameter as your 195/60/15, no issues. :)
     
    #2 josh2008, Dec 5, 2010
  3. Jim H

    Jim H New Member

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    Thank you Josh - I'm relieved, especially seeing that you work on Toyota's and obviously know your stuff. Thanks again.
     
    #3 Jim H, Dec 5, 2010
  4. firepa63

    firepa63 Former Prius Owner

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    If you put them on all 4 wheels you should have no problem. If you put them only on the front, you will be running with 2 different sizes which will cause the traction control light to come on when you reach 45-55 mph.
     
    #4 firepa63, Dec 5, 2010
  5. Jim H

    Jim H New Member

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    III
    Thanks for the tip - I did not know that and would've been confused. Fortunately though I have 4 Blizzaks from my old car, and will definitely put all 4 on my Prius.
     
    #5 Jim H, Dec 5, 2010
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