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-What Tire PSI is your Prius running?

Discussion in 'Gen 2 Prius Main Forum' started by ski.dive, Apr 21, 2021.

  1. ski.dive

    ski.dive Active Member

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    -What Tire PSI is your Prius running?
     
    #1 ski.dive, Apr 21, 2021
  2. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    I get the longest tire life at 40 PSI Front 38 PSI Rear.
     
    #2 JimboPalmer, Apr 21, 2021
  3. Salamander_King

    Salamander_King Senior Member

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    ~38psi all around.
     
    #3 Salamander_King, Apr 21, 2021
  4. jdenenberg

    jdenenberg EE Professor

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    I run 42 PSI front and 40 PSI rear in my Prius tires which are rated as 51 PSI Max cold.

    JeffD
     
    #4 jdenenberg, Apr 21, 2021
  5. PriusCamper

    PriusCamper Senior Member

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    Ecopias ---> 47psi in front & 45psi in rear
     
    #5 PriusCamper, Apr 21, 2021
  6. Rmay635703

    Rmay635703 Senior Member

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    My Volt and 1999 Insight stay between 50-60psi in the summer

    Much better tire life
     
    #6 Rmay635703, Apr 21, 2021
    PriusCamper likes this.
  7. ski.dive

    ski.dive Active Member

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    Why so High tire pressure for such a Light weight car???
    Wont it make it harder to stop the car with such high tire pressure? ?
     
    #7 ski.dive, Apr 21, 2021
  8. bisco

    bisco cookie crumbler

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    i run 20 at each corner. the traction, braking and handling are amazing, and it is your fathers oldsmobile.;)
     
    #8 bisco, Apr 21, 2021
  9. sam spade 2

    sam spade 2 Senior Member

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    ONLY until one of them explodes because of chronic over-inflation.
    Stupid is the only word that comes to mind.
     
    #9 sam spade 2, Apr 21, 2021
  10. Rmay635703

    Rmay635703 Senior Member

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    Got 80,000 out of the OEMs that came on the car, helps when the sidewall is rated over 50psi
     
    #10 Rmay635703, Apr 21, 2021
  11. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

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    When we had the Gen 2, we ran 40/38 both on the original Goodyear Integrity and Nokian WR.

    Gen 3: 38/36
    Gen 4: 33/32 (factory setting)
    Prime: 40/39
     
    #11 Tideland Prius, Apr 21, 2021
  12. dolj

    dolj Senior Member

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    35 PSI Front
    33 PSI Rear

    I have tried higher pressures up to 44/42 and found no significant improvement in MPG over a couple of tire cycles. Tires had to be scrapped early due to the centers wearing out before the sides. So went back to the Toyota recommended pressures above. Tires last much longer. Traction and braking are good, too.
     
    #12 dolj, Apr 22, 2021
  13. fuzzy1

    fuzzy1 Senior Member

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    If so, then Wayne Gerdes and his cadre must have considerable experience with these explosions.
     
    #13 fuzzy1, Apr 22, 2021
  14. The Lizard King

    The Lizard King Member

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    36 psi all the way around.
     
    #14 The Lizard King, Apr 22, 2021
  15. sam spade 2

    sam spade 2 Senior Member

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    Explain please.......or not.
    Somehow I think it will not be useful information.
     
    #15 sam spade 2, Apr 22, 2021
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