Nitrogen filled vs. standard air in tires
#17
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#19
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That nitrogen is a more stable gas but you have to remember most of our atmosphere is made of nitrogen too about 47% (go ask your wife - I am not too sure because I am a garbage man) So most of our atmospheric gas is pretty stable because of the amount of nitrogen and oxygen only makes up 28% or so. The benefits of nitrogen is diminished if a person take care of their tires and check pressure at least once a month. There is also a high initial cost for nitrogen too about 5 bux a tire.