---- Ben T <syncro@GMAIL.COM> wrote:
> A fellow called Dunlop is credited to be the first to build a practical tire which was inflated with air. Since air is 78.09% nitrogen, that makes him the first to put said gas in a tire which someone has documented.;-)
>
> I have to ask this next question. So you just had some tires mounted. Tire jockey inflates with nitrogen. What happens to the air already in the tire cavity before inflation started?

Of course, it is still there, as you already knew.  The whole nitrogen inflation thing is a scam, though most of the technicians at most of the shops offering may not even realize it.  The shop bought a device, convinced customers would go for it.  Since the shop spent money for the device, it has to use it to get its money back.  Sort of like some doctors, and all the unnecessary high tech tests.

mcneely

>
>
> BenT
>
> sent from my electronic leash
>
> On Mar 10, 2012, at 6:48 PM, Scott Daniel - Turbovans <scottdaniel@turbovans.com> wrote:
>
> > in tires ?
> >
> > On 3/10/2012 6:06 PM, Ben T wrote:
> >>
> >> If we're going to be really nitpicky, nitrogen was used even as early as 1887 though mixed with impurities.;-)
> >>
> >>
> >> BenT
> >> sent from my electro-pneumatic leash

--
David McNeely