-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?
     
  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.
     
  3. Salamander_King

    Salamander_King Senior Member

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    ~38psi all around.
     
  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
     
  5. PriusCamper

    PriusCamper Senior Member

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    Ecopias ---> 47psi in front & 45psi in rear
     
  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
     
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  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? ?
     
  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.;)
     
  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.
     
  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
     
  11. Tideland Prius

    Tideland Prius Moderator of the North
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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
     
  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.
     
  13. fuzzy1

    fuzzy1 Senior Member

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    If so, then Wayne Gerdes and his cadre must have considerable experience with these explosions.
     
  14. The Lizard King

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    36 psi all the way around.
     
  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.
     
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