Forum Discussion

Pipsfc's avatar
Pipsfc
Explorer
Dec 21, 2020

Green Valve Stem Covers

I went to add some air into my tires for my camper and noticed they were green valve stem covers. I remember someone telling me once that green caps usually indicate the tire is filed with nitrogen. Does anyone know if that's true? I can't seem to find anywhere in the manual where it talks about this.
  • time2roll's avatar
    time2roll
    Nomad
    Dec 22, 2020
    Since O2 and the rest bleed out so quickly virtually all tires have just Nitrogen. Molecules are the same size so it must be some voodoo power of the green cap.
  • wanderingbob's avatar
    wanderingbob
    Explorer II
    Dec 22, 2020
    Reminds me of the person on here whom said that he used a vacuum pump to get 100 per cent of the air out . Wow , the tire would collapse and loose the seal at the rim .
  • wanderingbob's avatar
    wanderingbob
    Explorer II
    Dec 22, 2020
    As said many times before , there is no tubeless tire with 100 % nitrogen . Empty a tire and it is still full of air , all you can do is add nitrogen to the tire that is full of ambient air . A vacuum pump will not empty a tubeless tire . Jut add air and forget nitrogen .
  • Lwiddis's avatar
    Lwiddis
    Explorer II
    Dec 22, 2020
    I use 78.09% nitrogen at all times in all my tires. Breathe it too when under stress. Always have.
  • Edd505's avatar
    Edd505
    Explorer
    Dec 21, 2020
    yes like said above, add air as needed. High school science, air is nitrogen & oxygen 21 % oxygen, 78 % nitrogen.
  • StirCrazy's avatar
    StirCrazy
    Moderator
    Dec 21, 2020
    Pipsfc wrote:
    Ok... thought so. Wasn't sure if I had to keep using nitrogen or not, but you answered that question. Air it will be! Thanks!


    except you will lose the benifit of what nitrogen does.

    if you fill with all nitrogen you will see slightly lower running temps, less pressure loss and it keeps the inside dryer.

    Steve
  • Pipsfc's avatar
    Pipsfc
    Explorer
    Dec 21, 2020
    Ok... thought so. Wasn't sure if I had to keep using nitrogen or not, but you answered that question. Air it will be! Thanks!
  • MFL's avatar
    MFL
    Nomad II
    Dec 21, 2020
    Yes, that is what the green cap is indicating. However, not a big deal, just use air, which is mostly nitrogen anyway. It would be nearly impossible to maintain 100 percent nitrogen, even if available. For RV tires, it is mostly just sales hype!

    Jerry

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