Nitrogen tire filling arrives in Calgary (CostCo)

wrote:
> On Sat, 02 Oct 2004 09:49:25 -0400, MoPar Man > wrote:
>
>>Nitrogen tire filling arrives in Calgary
> <snip>
>>Experts say that nitrogen molecules are four times larger than oxygen.
>
> Umm.. not true. Or, so sayeth my chemist wife, after she got through with
> ROFL when we say this at Costco ourselves.

The reason Nitrogen is used by racers is because (1) it's moisture-free
and therefore expands less at temperature, and (2) it's real cheap.

You can accomplish the same thing by getting yer tire air at a good
scuba shop, where the air pumped is also dried.