The Air1 DEF Mobile Locator is the official application of Air1. Traveling with the Air1 DEF Locator enables you to quickly locate your closest Air1 DEF retail outlet:


* Search by city, state or zip code


* Pick up your current location via GPS


* Calculate distance to nearest station


* View retail outlet address details


Diesel Exhaust Fluid (DEF), the operating fluid for SCR vehicles, is a non-toxic solution that transforms harmful Nitrogen Oxide (NOx) emissions from diesel-powered vehicles into harmless water vapor and nitrogen. DEF reduces NOx emissions in the exhaust gas system of your SCR equipped diesel vehicle. Air1 complies with the highest industry standards in DEF, certified by American Petroleum Institute (API). You can be sure your SCR vehicle will function flawlessly by using Air1 DEF. We reliably supply the highest quality DEF via the Mansfield DeliveryONE Network of distributors across the US, so you are never far away from an Air1 distributor.