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#1
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nitrogen in passenger car tires?
good idea or waste of time?
what's the science behind it? bob |
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#2
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nitrogen in passenger car tires?
In article >,
"bob" > wrote: > good idea or waste of time? Waste of time - you're already running something in the neighborhood of a 75% nitrogen mix in your tires. > what's the science behind it? There is none - Unless the science of "separating suckers from their money" counts. -- Don Bruder - - If your "From:" address isn't on my whitelist, or the subject of the message doesn't contain the exact text "PopperAndShadow" somewhere, any message sent to this address will go in the garbage without my ever knowing it arrived. Sorry... <http://www.sonic.net/~dakidd> for more info |
#3
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nitrogen in passenger car tires?
Don Bruder wrote: > In article >, > "bob" > wrote: > > >>good idea or waste of time? > > > Waste of time - you're already running something in the neighborhood of > a 75% nitrogen mix in your tires. Closer to 80%, but who's counting? > >>what's the science behind it? > > > There is none - Unless the science of "separating suckers from their > money" counts. There is a certain amount of science to it. Not so much that nitrogen is so much better, but that the purified nitrogen is generally free of moisture. Race tires often use nitrogen or simply "dry air". They claim that pure nitrogen is les permeable (leaks slower), but again atmospheric air is 79% nitrogen. Personally I think it's easier to just check the tires more often with an accurate gauge. The other claim is that oxygen will eventually oxidize th rubber. I think that's BS, since a tire has a liner that shouldn't readily oxidize. Oxygen will penetrate from the outside into the rubber anyways. Most of the explanations I've heard seem more like pseudo-science that sounds like it might be worth an extra $40. Most Costco locations now use nitrogen at no extra cost. I brought a car in (not mine) and they made sure to deflate the tires and fill with nitrogen after a free rotation. I wouldn't pay for it though. |
#4
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nitrogen in passenger car tires?
Don Bruder wrote:
> In article >, > "bob" > wrote: > > > good idea or waste of time? > > Waste of time - you're already running something in the neighborhood > of a 75% nitrogen mix in your tires. 78%, actually. And 21% oxygen, 1% other gases. > > > what's the science behind it? > > There is none - Unless the science of "separating suckers from their > money" counts. Apparently pure nitrogen is used by some truck fleets. The absence of oxygen means absence of moisture, and better control of inflation pressures over operating temperature ranges. Some race cars use pure nitrogen as well, for the same reasons. I do question the cost/benefit ratio of nitrogen in ordinary passenger cars, though. Doesn't seem worth it to me when I can get regular air for free with a bicycle pump. I just use an ordinary bicycle pump to add a few pounds here and there as needed. |
#5
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nitrogen in passenger car tires?
bob > wrote:
>good idea or waste of time? Of course it's a good idea. I always fill my tires with a mixture of about 80% nitrogen. >what's the science behind it? It holds the tires and keeps them from getting flat, while costing much less than argon or neon mixes, and being less explosive than butane or propane. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#6
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nitrogen in passenger car tires?
bob wrote: > good idea or waste of time? > > what's the science behind it? > > > bob What are the claimed benefits. It won't improve milage, extend tire life or improve the ride, but it will separate you from some $$. |
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nitrogen in passenger car tires?
Hugo Schmeisser > wrote:
> >78%, actually. And 21% oxygen, 1% other gases. I bet a nickel it's a good bit more than 1% in Los Angeles. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#8
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nitrogen in passenger car tires?
"John S." > wrote in message > What are the claimed benefits. Some have claimed that the oxygen and moisture in compressed air lead to the decomposition of the elastomer used in the tire. I have my doubts about it.. Have never seen definitive tests one way or the other. The ozone cracking, etc, is normally more noticeable on the outside of the tire, isn't it? It certainly doesn't hurt anything to use nitrogen, just like it doesn't hurt to use deionized water in your coolant system. |
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nitrogen in passenger car tires?
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#10
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nitrogen in passenger car tires?
Scott Dorsey wrote:
> Hugo Schmeisser > wrote: > > > > 78%, actually. And 21% oxygen, 1% other gases. > > I bet a nickel it's a good bit more than 1% in Los Angeles. Seriously, I was in Los Angeles this past summer. To the nose and eyes, your air is cleaner than that of Toronto, a much smaller city, and one that does not labour under a thermal inversion. I was impressed, actually. Perhaps it's due to a lack of diesel-powered city buses. |
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