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Is this true?


cougaruk

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"special gas" lol, nitrogen aint special.

 

they use nitrogen as normal atmospheric air contains other elements that expand and contract with heat a fair bit...by fair bit i mean a lot more than nitrogen alone...but not a lot.

 

they claim nitrogen doesnt expand when heated,but i beg to differ! it does,im talking 140 bar @15 deg c becoming 165 bar at 35 deg c (aircraft nitrogen systems)

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i like this bit

 

 

REASONS WE DO NOT RECOMMEND IT

There are no discernable benefits for ordinary road cars

 

* After researching many web pages and sources about using Nitrogen to inflate car tyres I summarise the information I have found here.

* Car tyres are normally inflated with compressed air.

* Air is approximately 80% Nitrogen, 20% Oxygen.

* Nitrogen is comparatively inert, Oxygen is a reactive gas.

* The Nitrogen used for inflation in tyre depots is normally generated by a separation process from compressed air. It still contains about 5% Oxygen.

* Nitrogen used at race tracks and in industry may be 99%+ pure and contained in high pressure cylinders at 2000+ psi.

* Both sources of Nitrogen will be treated to reduce the amount of water vapour.

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they claim nitrogen doesnt expand when heated,but i beg to differ! it does,im talking 140 bar @15 deg c becoming 165 bar at 35 deg c (aircraft nitrogen systems)

So when you are talking 2 bar of pressure as goes in car tyres, the expansion of the gas under heat is negligible.

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