Forum Discussion

wanderingbob's avatar
wanderingbob
Explorer II
Aug 06, 2016

Not nitrogen , again !

If at sea level I removed the valve stem from a tire ,the air inside would equalize at one atmosphere .Replace valve stem and brought tire up to 33 pounds with nitrogen , contents would be 50 percent natural air and 50 percent nitrogen , Why 33 lbs , as I understand it one atmosphere equals 33 lbs. Maybe I am mixing apples and oranges .
Continuing , I bring tire up to 66 lbs , operating pressure for this tire . Tire now is one third air and two thirds nitrogen . I can never improve this mixture with out a vacuum pump , nearly impossible because of sidewall collapse .
How far off base am I , I ain't no science wiz .
Seeking Advice
  • Geocritter's avatar
    Geocritter
    Explorer
    Aug 06, 2016
    I carry a small nitrogen tank and pressure regulator in my RV and use it in lieu of a air compressor. I've found the tank will meet all my needs for a year or so and then I purchase a fresh tank at a welding supply for $15-$17. I like it so much better than that wimpy air compressor I had, plus if I need to rent an air impact wrench to break a few nuts free it'll give me more than enough pressure for my needs.

    Steve
  • MFL's avatar
    MFL
    Nomad II
    Aug 06, 2016
    Well Bob, I think, you are over thinking this!

    It is my understanding, that "natural air", has a high percentage of nitrogen, about 80 percent, to begin with.

    I don't know why you would feel the need to be 100 percent nitrogen on an RV tire, but I think if you let existing air out of your tire, added pure nitrogen from a suitable source, that would be as good as it gets.

    Jerry

About RV Tips & Tricks

Looking for advice before your next adventure? Look no further.25,105 PostsLatest Activity: Jan 27, 2025