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tony066's avatar
tony066
Explorer
Aug 31, 2013

nitrogen filled tires

My new 5th wheel coach has nitrogen filled tires. If I need to add pressure do I need to find a service center that can supply nitrogen or is there a way to carry a nitrogen tank for the purpose? I know I can add air from my compressor but it does dilute the nitrogen and sort of defeats the purpose.
  • IF you can find a nitrogen station and it is FREE..great!
    Nitrogen is a benefit (small) for use in regular tires due to it being drier.

    Compressed air can have moisture.....lots if compressor doesn't have a water separator or dryer. But on the other hand..how many rims have you had that rusted out due to moisture inside the tire. I haven't had any.

    Costco does (did) have free nitrogen.

    Free & convenient nitrogen.........yes I would use it.
  • In response to OLD BISCUIT - yeah I know our atmosphere is 78% nitrogen and I have always thought as you did: what's the point? The more I read though, the more I am beginning to understand the issue. As it turns out, the issue of leaking oxygen molecules is the least of the problems with atmospheric air - although that is why Nascar uses nitrogen. The real problem is the oxygen in the tires tends to oxidize tires from the inside out. Beside the fact that nitrogen is (for all practical purposes) inert it also tends to hold and contain less water vapor than atmospheric air. At least that's the explaination I have read for it's use. Having said all that - I still agree that it's hardly worth the effort to drag a 13000 lb trailer around with low tires looking for a nitrogen fill. I thought that just maybe somebody knew of a convenient method of maintaining the original nitrogen fill. Thanks anyway for your thoughts.
  • I have the same in my car. do you have a costco in your town. if
    they will fill your tires for free at their tire shop.
    good luck.
  • Francesca Knowles wrote:
    You'll probably think I'm kidding, but I've honestly wondered about carrying a tank of liquid nitrogen
    That's actually possible? Or safe?
  • tony066 wrote:
    My new 5th wheel coach has nitrogen filled tires. If I need to add pressure do I need to find a service center that can supply nitrogen or is there a way to carry a nitrogen tank for the purpose? I know I can add air from my compressor but it does dilute the nitrogen and sort of defeats the purpose.


    YES using an air compressor will dilute the nitrogen in the tires......but what 'purpose' do you expect from the nitrogen?

    Granted nitrogen molecules are larger than 'air' and therefore do not leech out of tires as quickly BUT everytime you check the pressure in your tires you lose some. So eventually you will need to add.

    Now you can drag your trailer around looking for a place that has nitrogen, use a nitrogen cylinder......both $$$
    Or just forget about all the gimmickry and use plain ole air (72% nitrogen, 21% oxygen, 1% trace gasses for 720Deere)

    It's a great marketing gimmick, same as new-improved-enhanced except in the real world you are not going to be hitting 150 mph and dealing with minute pressure changes were nitrogen does play a role

    A much better use of your money would be to buy a good tire-pressure gauge and check your tires frequently.
  • You'll probably think I'm kidding, but I've honestly wondered about carrying a tank of liquid nitrogen for the purpose of freezing stuff for my cooler- goodbye buying ice. Seems to me that if you have the room (and the nerve) you might as well haul one- and let me know if you try my "dual-purpose" idea!
  • Oh boy, I can see the 78% nitrogen comments coming on this one! If you wish to keep the benefits of pure nitrogen in your tires, you either need a nitrogen tank or visit a tire shop that has a nitrogen machine. You can use normal compressed air but as you guessed that will be the end of your nitrogen fill. Let the flaming begin!