MazdaMomma Posted October 5, 2007 Report Share Posted October 5, 2007 HOW NITROGEN WORKS AND WHAT IT DOES Nitrogen (N2) makes up the majority of the air that we breathe and is contained in the protein of all life on earth. It is colorless, tasteless, and non-toxic. The next most common component of air is oxygen (O2). Together N2 and O2 make up approximately 99% of the air we breathe and traditionally fill tires with. N2 IS A LARGER MOLECULE THAN O2 Therefore, it cannot escape as easily as oxygen through porous material such as a rubber tire wall (carcass). Leaking at a much slower rate than oxygen, a tired filled with a hihgher percentage of N2 maintains its proper pressure roughly three to four times longer than air-filled tires. Proper inflation provides better fuel economy, superior handling, longer tire life, and increased safety by reducing the liklihood of low pressure related loss of control, blowouts and other tire failures. N2 IS A DRY, INTERT GAS O2 in a tire provides unwanted oxidation. Over time, this reaction destroys the tire carcass and corrodes wheels. A tire is prematurely aged by O2 from the inside-out as the pressurized air in the tire makes the O2 try to escape through the tire carcass, speeding up the damaging oxidation process. N2 on the other hand, is a harmless inert gas that does not react negatively with tires and wheels. N2 filled tires also reduce tire heat, thereby decreasing rolling resistance and increasing fuel economy. N2 IS NON-FLAMABLE O2 is a flammable gas while N2 is an extinguishing gas. Thus, a large number of mass transportation companies around the world fill their tires with N2 for added fire and explosion safety. In a vehicle fire, ruptured air-filled tires fuel the fire. N2 filled tires slow the fire. (N2 has been used in tires for many years on aircraft, military vehicles, off road trucks, racecars, and even Tour de France bicycles.) NITROGEN INFLATED TIRES ARE SAFER AND LONGER LASTING THAN TIRES INFLATED WITH AIR. Nitrogen inflated tires do not age as quickly as air inflated tires Nitrogen inflated tires improve vehicle handling through proper inflation and consistently maintained pressure. Nitrogen is an inert, non-combustible and non-flamable gas Nitrogen is a stabel gas providing more constant pressure Nitrogen is a dry gas with no corrosive properties as found in compressed air CORRECT INFLATION VERSUS UNDER-INFLATION Correct inflation is highly significant when considering tire life and performance. It is not always possible to look at a tire and detect under-inflation. However, under-inflation can cause many tire related problems. As inflation pressure largely determines a tire's load capacity, under-inflation results in an overloaded tire. An under-inflated tire operates at high deflection resulting in decreased fuel economy, sluggish handling and may result in excessive mechanical flexing and heat build up, leading to catastrophic tire failure. Ok guys, let the comments and opinions commence... Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted October 6, 2007 Report Share Posted October 6, 2007 indeed, been used for awhile. Sadly I cannot take advantage ot this since I'm constantly changing the PSI in the Millenia and M depending how long before I plan on driving again, and for the Jeep I can airdown on the trail, and since I already have an on-board air compressor Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 6, 2007 Author Report Share Posted October 6, 2007 we are actually using it in the truck. wingman did it before checking with me. Quote Link to comment Share on other sites More sharing options...
Troutman Posted October 6, 2007 Report Share Posted October 6, 2007 I like the idea, however from memory it costs money and can only be done at precious few places... Seeing there is no problem with checking/topping up with regular air there's no reason not to do it especially when fitting new tyres. Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 6, 2007 Author Report Share Posted October 6, 2007 I don't know where you can get it done here. I think Wingman got it done at the diesel school he is attending. In which case, it was free. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted October 6, 2007 Report Share Posted October 6, 2007 not alot of places have it, and there is a charge, usually about 10 dollars a tire. if/when I get another car, like the cls or m6, I may go this route Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 6, 2007 Author Report Share Posted October 6, 2007 I will have to ask him where he got it done. Quote Link to comment Share on other sites More sharing options...
enginph Posted October 6, 2007 Report Share Posted October 6, 2007 Not only the leaks but also the temperature. Season change will require an inflation adjustment.. $10/per tire for 95% nitrogen, free for 80%.... Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 6, 2007 Author Report Share Posted October 6, 2007 You can choose how much nitrogen you use? I did not know that. Wingman did get the nitrogen done at the school for free. I have no clue where in the tri-state area you can get this done. Quote Link to comment Share on other sites More sharing options...
enginph Posted October 6, 2007 Report Share Posted October 6, 2007 I am assuming their pure nitrogen is 95% actually. And we have 80% nitrogen in the air anyway. Quote Link to comment Share on other sites More sharing options...
sirmakesalot Posted October 6, 2007 Report Share Posted October 6, 2007 thats a fact Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted October 6, 2007 Report Share Posted October 6, 2007 in theory, once a tire is filled with nitrogen you'll never have to adjust them again regardless of temp or conditions. but yes, you tell them what PSI you want your tires at, any even remotely decent shop will ask you Quote Link to comment Share on other sites More sharing options...
enginph Posted October 7, 2007 Report Share Posted October 7, 2007 really? Why is that?? esp. in theory part? The theory is: PV=nRT keep n (number of molecules) constant, R is already a constant, keep V (volume) constant, increase T (temp.) then P (pressure) will increase. If you go from say 80F (27C) to 30F (-1C) the pressure change will be 10%!! If you have humidity in the tire it is worst than that... in theory, once a tire is filled with nitrogen you'll never have to adjust them again regardless of temp or conditions. Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 7, 2007 Author Report Share Posted October 7, 2007 Because I need to replace the tires on the truck, I cannot tell you if the handling has improved or not. I will have to buy new tires and then have Wingman fill the new tires with N2 and then road test them. Quote Link to comment Share on other sites More sharing options...
enginph Posted October 7, 2007 Report Share Posted October 7, 2007 Fill with helium maybe you can fly Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 7, 2007 Author Report Share Posted October 7, 2007 Nah, I don't like to fly. Drive fast, yes; fly, nooooooo. Quote Link to comment Share on other sites More sharing options...
Troutman Posted October 7, 2007 Report Share Posted October 7, 2007 In theory it might help reduce weight slightly. Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 7, 2007 Author Report Share Posted October 7, 2007 helium? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted October 7, 2007 Report Share Posted October 7, 2007 I doubt about weight. saint, the reason is because the molecules are so much smaller they can't penetrate the rubber like oxygen can when the temp changes, hence you never lose psi in the winter. addtionally, tire temp doesn't really mean anything since there should be no humidity in the tires at all, but once you start driving your going to be putting heat in the tires Quote Link to comment Share on other sites More sharing options...
enginph Posted October 7, 2007 Report Share Posted October 7, 2007 because the molecules are so much smaller they can't penetrate the rubber like oxygen can when the temp changes, Yeah that. the length of a nitrogen molecule ought to be 4 X 75pm or 300 pm. A molecule of oxygen ought to be just a shade smaller 4 X 73pm or 292pm. So an oxygen molecule ought to be a little less than 3% smaller than a nitrogen molecule. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted October 7, 2007 Report Share Posted October 7, 2007 you should watch more power block. I would love to do this if I could, but I'm changing psi so often on all my cars its not practical. Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 7, 2007 Author Report Share Posted October 7, 2007 There really is no place to do it around here, so I won't be doing it. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted October 9, 2007 Report Share Posted October 9, 2007 lots of places do it, they simply don't advertise it Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted October 9, 2007 Author Report Share Posted October 9, 2007 name a few Quote Link to comment Share on other sites More sharing options...
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