Why would tire brand make a difference as far as air pressure?

Discussion in 'Experienced Truckers' Advice' started by Truckermania, May 22, 2024.

  1. Truckermania

    Truckermania Road Train Member

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    https://photos.app.goo.gl/dzSaAYPKcvZrZJuG7

    I saw this on a truck parked next to me. It says to put Michelin steers at 100psi and others at 110psi. Why would Michelin be 10psi less than other brands? Makes no sense to me.
     
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  3. expedite_it

    expedite_it Road Train Member

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    Maybe the Michelin tires have thinner walls of rubber than other brands.
     
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  4. cuzzin it

    cuzzin it Road Train Member

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    Rubber ridgedness and possibly heat rating or thickness
    I see that on bicycle tires too
     
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  5. SmallPackage

    SmallPackage Road Train Member

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    For testing purposes. Michelin has supplied tires to Ruan to test in real world conditions and that is the psi Michelin wants tested at. All others are not being tested and are run at normal Ruan operating psi.
     
  6. Truckermania

    Truckermania Road Train Member

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    Thank you! Makes sense now.
     
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  7. drivingmissdaisy

    drivingmissdaisy Road Train Member

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    Because just like women, some tires just like it harder.
     
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