View Poll Results: What scale do you use for tyre pressures?

Voters
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  • PSI

    64 98.46%

  • KPA

    2 3.08%

  • Bar

    1 1.54%
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Thread: Do you use PSI or KPA for tyre pressures

  1. 21st May 2018, 09:02 PM #1
    hpal's Avatar
    hpal
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    Do you use PSI or KPA for tyre pressures

    A poll, I wondered who uses PSI and who uses KPA or Bar for tyre pressures. Generally KPA is used in texts and such, I prefer metric for everything except tyre pressures which I find easier to translate in my head in PSI, I know what 30psi looks like but no idea for KPA.
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  2. 21st May 2018, 09:11 PM #2
    Tombie Guest
    I use Psi natively but can work in Kilopascals or Bar.
    I also work comfortably across imperial and metric (yet only taught metric).

    But I’ll bet money on it you don’t know what 30psi looks like Do you use PSI or KPA for tyre pressures
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  3. 21st May 2018, 09:16 PM #3
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    trout1105
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    I'm 64 what do you recon I use
    You only get one shot at life, Aim well

    2004 D2 "S" V8 auto, with a few Mods gone
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  4. 21st May 2018, 09:16 PM #4
    Tombie Guest
    Quote Originally Posted by trout1105 View Post
    I'm 64 what do you recon I use
    Glasses
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  5. 21st May 2018, 09:17 PM #5
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    trout1105
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    Quote Originally Posted by Tombie View Post
    Glasses
    Boom Boom
    You only get one shot at life, Aim well

    2004 D2 "S" V8 auto, with a few Mods gone
    2007 79 Series Landcruiser V8 Ute, With a few Mods.
    4.6m Quintrex boat
    20' Jayco Expanda caravan gone
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  6. 21st May 2018, 09:18 PM #6
    AK83
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    PSI.
    I grew up with psi.
    kPa makes no sense to me .. be that a turbo or a tyre(or a compression test, or whatever else it may be used for).

    Strangely tho hPa make sense when I look at weather charts!
    Arthur.

    All these discos are giving me a heart attack!

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  7. 21st May 2018, 09:26 PM #7
    Old Farang
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    Well, I will be a make believe geek and post the following:

    Dist. in Km
    ----------- x 2.8245 = MPG
    litres used

    Or, use a constant of (K) = 0.355

    MPG x K = Km / Litre

    Km / Litre
    ------------ = MPG
    K

    100
    ………. = Litres / 100 Km
    Km / Litre

    Never could see the reason for Litres / 100 Kms
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  8. 21st May 2018, 09:50 PM #8
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    rangieman
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    Im in PSI But i was unfortunate or fortunate to learn both Imperial and Metric at school as a child not by choice
    So i can work with both
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  9. 21st May 2018, 10:23 PM #9
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    My L322 owners handbook give pressures in Bar but my local servo's air supply is in psi or kPa.

    I use psi.
    Ron B.
    VK2OTC

    2003 L322 Range Rover Vogue 4.4 V8 Auto
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  10. 21st May 2018, 10:31 PM #10
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    My tyre pressure gauges usually read psi so I'll stick to that.

    Anyway, 100kPa (pronounced "katterPilla") = 1000hPa = 1bar = 14psi approx. so it's not hard to do a spot of mental arithmetic and convert one to another, at least to stop the tyre looking squidgy.
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