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Dajmin
Guest
Never done it myself, but I know some people who have.
Apparently it reduces internal corrosion because the process removes any water from inside the tyre, and it loses pressure far slower because the nitrogen molecules are larger than oxygen so can't seep out as easily. Although both of these are a matter for some debate.
No performance increase as far as I know.
Apparently it reduces internal corrosion because the process removes any water from inside the tyre, and it loses pressure far slower because the nitrogen molecules are larger than oxygen so can't seep out as easily. Although both of these are a matter for some debate.
No performance increase as far as I know.
I had it done 2 weeks ago. Only reason I done it though was becasue it's supposed to hold the pressure for 6 months so you don't need to check the tyre pressure. A pure convenience thing, but then again if your pressures are right for 6 months it might save you a bit in fuel.
As said it's supposed to stop corrosion of the alloy as there's no moisture but at the end of the day I don't really see that as a serious threat to your wheels!
cmc
I've got nitro in 2 of my tyres and they do seem to hold pressure far better than the two that don't have nitro....
For the sake of a pound a tyre I thought why not!
For the sake of a pound a tyre I thought why not!
I wish I knew about this earlier. I'd have paid a quid per wheel for not having to check my tyre pressure every few weeks. Do they do it so you can just go in and have it added?
turbin
Guest
I had this done when I got 4 new summer tyres. he workshop did it automatically. Apparently its better for the pressure in the tire when the wheel gets really hot during racing. Pressure more constant.
Yeah, I think nitrogen is more stable in varying temperatures, isn't it? It doesn't expand/contract as much as oxygen. That said, the majority of the air we breathe is nitrogen...
"Dry air contains roughly (by volume) 78% nitrogen, 21% oxygen, 0.93% argon, 0.038% carbon dioxide, and small amounts of other gases" - Wikipedia
"Dry air contains roughly (by volume) 78% nitrogen, 21% oxygen, 0.93% argon, 0.038% carbon dioxide, and small amounts of other gases" - Wikipedia
Yup, so by that it's fair to say 22% of what usually goes into your tyre ISN'T nitrogen
Sounds like a good idea for constant pressures, as others have said it reduces the fluctuation due to temp.
Not done it myself before.
We use nitrogen in our race tyres, the main reason is because when using nitrogen all the molecules are the same inside the tyre and therefore all expand at the same rate, when the tyre and nitrogen get hot. this means that the increase in pressure throughout the race is predictable. When using air, there is obviously a mixture of gases and water vapour, these expand at different rates, and therefore since the mixture and more importantly the amount of moisture in the air changes all the time the increase in pressure cannot be predicted accurately. Not really sure if this really happends in road cars as the tyres (not slicks) do not heat up like race tyres do.
The whole point is that the nitrogen is dry. If you use an air compressor then tyre the contains moisture from the air which expands differently to most gases and can condense out in the cold. If you used dry air you'd get the same result, they use nitrogen because it's cheaper than synthetic air.
Don't forget that the other reason to check your tyres is you may have a slow puncture which could cause a blow out or make the car unstable when cornering.
I just drove up to kwik fit and asked them to drain the old tyres and re-fill them with Nitro. Took about 10 minutes. Best go first thing in the morning though when they're quieter as they're more likely to do it if they're doing nothing else.
cheers
cmc
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