Member Since: 03 Apr 2007
Location: Salford
Posts: 533
Tyres filled with Nitrogen!!
What's that all about then???
Been searching for a new set of tyres recently and noticed that Kwik Fit will fill your tyres with nitrogen for £1 each, claiming it increases road holding and increases fuel effieciency by 5%.
Any informed opinions about whether this is a load of cack or credible. I'd love to add 5% to my average mpg of 21.2. Badda bing.......How you doin'?
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12th Apr 2010 12:11 pm
LT
Member Since: 31 Dec 2005
Location: South West
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Member Since: 11 May 2006
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Cack, air is 78% N anyway!
12th Apr 2010 12:16 pm
Willy Eckerslike
Member Since: 12 Jan 2009
Location: N Yorks
Posts: 1612
What percentage of air is Nitrogen is it 78% so I already fill my tyres with nitrogen ...........nearlyClub Pie n Pea
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12th Apr 2010 12:16 pm
SN
Member Since: 03 Jan 2006
Location: Romiley
Posts: 13710
AA site wrote:
Reduced corrosion – because unlike air there's no moisture in pure nitrogen
Slower rate of pressure loss – because nitrogen molecules are larger than oxygen molecules (which make up 21% of compressed air)
One assumes the corrosion only occurs on steel wheels so the first one's out for all cars with alloys
Second one... according to Wikipedia...
Molecular size
Most molecules are far too small to be seen with the naked eye, ... . The smallest molecule is the diatomic hydrogen (H2), with a length of 0.74 Ã….[5] Molecules commonly used as building blocks for organic synthesis have a dimension of a few Ã… to several dozen Ã…
And how big is an Å ? The ångström or angstrom (symbol Å) is an internationally recognized unit of length equal to 0.1 nanometre or 1 × 10−10 metres - put it this way, you'd have to line up 10 MILLION of them to get to 1mm wide
Oh and by the way, Nitrogen is 1.55 and Oxygen 1.52 - a difference of less than 2% of only 20% anyway
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Maybe we could all fill our tyres with carbon dioxide and help save the planet?
Seriously, was the nitrogen fill not introduced to get an increase in thermal conductivity?A vaccine does not stop you catching a virus, or passing it on, or getting ill from it, really ill. It does reduce the likelyhood of you dying when really, really ill. Stay Alive - KEEP AWAY FROM PEOPLE.
Member Since: 13 Mar 2010
Location: Aberdeen
Posts: 88
I must admit that I do fill my tyres with nitrogen; not on my Disco but my track car. The heat generated on track makes the tyre pressures change significantly and i've found that this effect is lessened by the use of nitrogen. However this is all undone as soon as I decide to inflate the tyres at all at the circuit as i've not found many places with Nitrogen bottles to hand!
On a road car such as a Disco it'll be a waste of time.
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12th Apr 2010 2:18 pm
nobber
Member Since: 09 Mar 2010
Location: durham
Posts: 22
yehh i think it is a marketing gimmick , it is used in racing car tyres and aircraft tyres bbbbuuuuttttt road car tyres i think not.A little knowledge is a dangerous thing!
12th Apr 2010 3:26 pm
Willy Eckerslike
Member Since: 12 Jan 2009
Location: N Yorks
Posts: 1612
Nitrogen is so last year anyway, the in thing is helium Lightens the unsprung weightClub Pie n Pea
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12th Apr 2010 3:36 pm
roamingman
Member Since: 25 Jun 2008
Location: aberdeenshire
Posts: 525
When I had my tyres changed last year they put it in not noticed any defferance.convoy For Heroes record holder (348)
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12th Apr 2010 3:46 pm
nobber
Member Since: 09 Mar 2010
Location: durham
Posts: 22
Willy Eckerslike wrote:
Nitrogen is so last year anyway, the in thing is helium Lightens the unsprung weight
I wondered why the tyre fitters had a funny voice A little knowledge is a dangerous thing!
12th Apr 2010 3:57 pm
dick dastardly
Member Since: 29 May 2007
Location: wiggleigh bottom
Posts: 1112
Willy Eckerslike wrote:
Nitrogen is so last year anyway, the in thing is helium Lightens the unsprung weight
yeah the helium helps you avoid the (mercedes ?) bends. or was that deep sea diving ?There's one wheel on my wagon, but i'm still rollin' along, it's the cherokee, they're after me, but I'm singing a happy song
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so I already fill my tyres with nitrogen ...........nearly
- Wouldn't sell
yehh i think it is a marketing gimmick , it is used in racing car tyres and aircraft tyres bbbbuuuuttttt road car tyres i think not.
