> If you believe that, then you have never taken a class in chemistry.
> That stability story is one of the nonfacts that nitrogen tire fill
> equipment makers use to push their pretty much worthless machines.
> Nitrogen, oxygen and all the other gases that make up air expand and
> contract at exactly the same rate with temperature. Pick up a
> chemistry text and read the chapters on "gas laws."
>
> The only added value to filling tires with nitrogen is for the person
> selling the service.
>
> Les
Then why does Costco fill all the tires they sell with nitrogen. You
cannot buy nitrogen from them--it is only something they provide at no
cost for their new tires. I don't believe that Costco is run by idiots.
There must be some value. In my case, the only difference I've seen is a
much, much lower of air loss due to migration. But that is a very
worthwhile difference for me.
Bob Clerc
@ Casa Grande, AZ
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