[Terpfen]

You can take them to any tire shop that offers it,

That's what I'm asking: how do I locate a tire shop that offers nitrogen? Google is unhelpful in this regard. Is there a website that inventories dealers and mechanic shops that offer nitrogen?

[Abathar]

Most of your small town mom and pop places probably don’t offer the service, but if you go to the bigger chains like a Goodyear or Tire Barn they probably will. If it were me I would just pick up the phone and call your local tire shop, if they don’t offer it just ask if they know of any place that does.