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Tires 185/65/15 Front & 195/60/15 Rear

Discussion in 'Gen 2 Prius Main Forum' started by PG2PA, Apr 13, 2016.

  1. PG2PA

    PG2PA Junior Member

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    Hello Priuschatters, I recently bought a GenII Prii. I've noticed after a month of owning the vehicle the Prii has two different set of tires 185/65/15 Front & 195/60/15 Rear. I've done some lurking here but I don't think I've come across any posting regarding this. Handling is good, 45-48 MPG and roughly 400 miles per tank

    Question is: Do I keep the tires the way they are or buy 2 new tires?
     
    #1 PG2PA, Apr 13, 2016
  2. S Keith

    S Keith Senior Member

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    The 185/65 is 0.26" larger diameter, which is a 1.06% difference in the diameter of those sizes.

    If the 195/60 were on the front, you would have a 1.06% built-in error to your mileage and odometer as it turns more in a given distance (1.06%).

    The 195/60 should wear 1.06% faster as well. :)

    I wouldn't worry about it. I'm 98.04% certain... :)
     
    #2 S Keith, Apr 13, 2016
    Sillywizard and kenoarto like this.
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    If you should find that the skid control ECU complains (via lighting up one or more of the following warning lights: VSC, ABS, BRAKE, ((!)), or the icon of a skidding car) then you would need to remedy the problem. Otherwise, you can operate the car in that condition.
     
    #3 Patrick Wong, Apr 14, 2016
  4. mmmodem

    mmmodem Senior Taste Tester

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    No issues. The odometer difference is small as well. Just make sure when you rotate tires they stay together front or back.

    I tried plus size tiring on my Corolla a few years back going with 195 instead of stock 185 to get better handling. I started with 2 and put them on the rear. Turns out tires were too wide and rubbed when I go over potholes or speed bumps. Epic failure. I rotated the tires to the front to get rid of them as the front wears faster than the rear.
     
    #4 mmmodem, Apr 14, 2016
  5. PG2PA

    PG2PA Junior Member

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    The traction control light (S curve light) has come on twice. Once while turning onto the street from a driveway(flooring it) and the second also "flooring it" at an onramp with a curve entering at highway speeds for a test drive. But, no other lights.
     
    #5 PG2PA, Apr 14, 2016
  6. djasonw

    djasonw Active Member

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    I have the same setup on my car. I had plus sized it a while back and I needed two new tires. I had a friend bring it in for me and the mechanic installed the correct tire size. Anyway, I just dealt with it but there are NO issues with handling or lights coming on. I think the difference is insignificant so it won't adversely affect the electronic nannies.
     
    #6 djasonw, Apr 16, 2016
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