Tire wearing problem

Discussion in 'Gen 2 Prius Main Forum' started by desertrider2215, Apr 22, 2009.

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  1. jdenenberg

    jdenenberg EE Professor

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    The Integrity tires have the SOFTEST sidewalls I have ever encountered. They are NOT LRR tires (My Nokian WRg2 tires are LRR, Stiff sidewalls do not correlate with rolling resistance, LRR comes from sophisticated rubber compounds using organo-silicates) and do exhibit excessive treadwear on the outer edges due to scrubbing in turns. Upping the PSI from the Toyota suggested 35/33 (I used 42/40, the Integrity tires are rated 44 PSI MAX) does help as does being less aggressive in turns. MY integrity tires lasted 44,500 miles. My son-in-law's Integrity tires went over 60,000 miles (all highway - few turns- not an agressive driver).

    JeffD
     
    #21 jdenenberg, May 29, 2009
  2. richard schumacher

    richard schumacher shortbus driver

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    Jeff, how did you assess the stiffness of the sidewalls? How much better fuel economy do you get with the WRg2s?
     
    #22 richard schumacher, May 30, 2009
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