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Tire Pressure Dilemma

Discussion in 'Wheels & Tires' started by Toyfosi, Sep 20, 2020.

  1. Sep 20, 2020 at 5:07 PM
    #1
    Toyfosi

    #1
    Toyfosi [OP] New Member

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    Tom
    Calvin, KY
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    Trailer brake,
    My 2010 Tundra has the 18" alloy wheels with P275/65R18 tires and Firestone Transforce HT tires. The tires have 80 psi. maxon the side but when I bought the truck they had 50 psi. in them. Firestone website said go with mfgr recommended pressure which is 30 and 33psi. What do you guys think?
     
    Toyfosi, Sep 20, 2020
    #1
  2. Sep 20, 2020 at 5:11 PM
    #2
    T-Rex266

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    T-Rex266 Elon approved Staff Member

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    Go with the sticker on the side of the door
     
    T-Rex266, Sep 20, 2020
    #2
    YardBird likes this.
  3. Sep 20, 2020 at 5:11 PM
    #3
    T-Rex266

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    T-Rex266 Elon approved Staff Member

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    80 is way too much.
     
    T-Rex266, Sep 20, 2020
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    BravoDeltaRomeo and YardBird like this.
  4. Sep 20, 2020 at 5:15 PM
    #4
    ColoradoTJ

    #4
    ColoradoTJ Certified tow LEO Staff Member

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    Calibrated Power 5 Tune pack, Allison 1000 tune, PPE deep trans pan, Cold/Hot CAC pipes, Banks CAI, PCV reroute, resonator delete, S&B 62 gal fuel tank, B&W GN hitch
    No way I would have 80 psi in mine unless towing at max capacity.
     
    ColoradoTJ, Sep 20, 2020
    #4
  5. Sep 20, 2020 at 5:19 PM
    #5
    Hbjeff

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    Hbjeff New Member

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    Huntington Beach
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    2010 DC 5.7 2wd
    Trd sways, bullydog, magnaflow, sumo springs
    How often are you hauling? Flat country or canyon roads?
     
    Hbjeff, Sep 20, 2020
    #5
  6. Sep 28, 2020 at 7:57 AM
    #6
    Cpl_Punishment

    #6
    Cpl_Punishment Young men never die.

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    Alberta, Canada
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    Boost Auto mirrors, RSB, Leer Legend canopy, Line-X bed liner
    80 psi is the max pressure the tire itself can contain when hot and under load before it bursts. You should NEVER inflate the tires (cold) to anywhere near that. Go with the number on the sticker in the driver's door or the owner's manual.
     
    Cpl_Punishment, Sep 28, 2020
    #6
  7. Sep 28, 2020 at 8:34 AM
    #7
    C.I.

    #7
    C.I. Surf, off road, sleep, repeat

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    Get those damn tires to 33~30 right now!! :eek2:
     
    C.I., Sep 28, 2020
    #7
    Cpl_Punishment likes this.
  8. Sep 28, 2020 at 8:41 AM
    #8
    GiantWinston

    #8
    GiantWinston New Member

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    Houston, TX
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    Toytec Boss Lift (3.5" front / 2.5" rear) 295/65/R20 Nitro Ridge Grapplers 2018 LED Headlight Conversion Pioneer AVH-W4400NEX Headunit
    Agree with others to stick with what's on the door sticker. I did the chalk test on my Nitto Grapplers. I found raising the pressure closer to 40psi to be a good place for even tire wear.
     
    GiantWinston, Sep 28, 2020
    #8
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