Nitrogen in car tyres.

[Realist78]

Actually N2 isn't inert, argon, neon, xenon etc known as the inert gases (clue is in the name) are inert thoughDT_Xtremez_14:

I thought they were called the Noble gases (although being inert is one of their properties).DT_Xtremez_14:

 

[Incubus]

They underwent a rebranding when it was realised that they, like Nitrogen, were not actually inert. Under normal conditions, however, they are generally unreactive.

 

[firestorm]

...and they still dont put out a/c tire fires out!

 

[Craig855s]

N2 is pure N2, compressed air is atmospheric air pumped from the immediate environment into your tyre, so if it is a humid day thats a lot of moisture going into the tyre in plain compressed air. and that moisture will expand more than just N2, so N2 has the benefits on aircraft of not feeding fires, and not expanding under heat due to the lack of water molecules.

On a road car its' pointless, or a racing car where a couple of PSI will seriously affect laptimes then you want that extra control over the pressure that you'll get with pure nitrogen (maybe dehumidified compressed air would be equally stable if the O2 and CO2 etc expands just as much under heat as the N2)

Those saying that tyre pressures dont alter with heat need to take a look for themselves with a TPG, check the tyres cold, then check them after a spirited drive, they will be very different.

I race karts and we dont use nitrogen, but 12PSI cold expands to 15PSI when the tyres are hot (And by hot I mean untouchable)

 

[Realist78]

Although departing from the thread, I would suggest that the teams racing at the pinnacle of motorsport know far more than armchair pundits about the benefits of various gases and tyre pressures etc.DT_Xtremez_14:

 

[grumpyoldb]

Although departing from the thread, I would suggest that the teams racing at the pinnacle of motorsport know far more than armchair pundits about the benefits of various gases and tyre pressures etc.DT_Xtremez_14:

But should ATS be pressing this upon normal motorists....................?

 

[Craig855s]

But should ATS be pressing this upon normal motorists....................?

They're not forcing you to do anything, all salesmen will try and get you to go for the more expensive option of whatever it is you're looking for, if you get mugged off for the £4 for a nitrogen fill up then that was your choice

 

[gemarriott]

I thought they were called the Noble gases (although being inert is one of their properties).DT_Xtremez_14:

Quite correct, have a sweetieDT_Xtremez_42:

 

[firestorm]

Beware of old men offering sweets.