Published by Yara International on 2018-02-01
What is DEF?
The Air1 DEF Mobile Locator App is designed for Heavy Duty Vehicle operators to locate Yara accredited DEF stations. The app is updated monthly by the Yara team and only lists Yara bulk retailers. The app enables users to quickly locate the nearest Air1 DEF filling station to fast fill their Heavy Duty vehicle. The app also provides information on DEF and its benefits for SCR equipped diesel vehicles.
1. 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.
2. These retail units have been serving bulk DEF to the Heavy Duty Vehicle operators and drivers since 2004 and deliver DEF in large quantities at a fast pace.
3. Yara sites are not suitable for small vehicles e.g. Passenger cars and other small tank vehicles.
4. These stations are not suitable for car drivers or small tank refills (visit for more information on Passenger cars).
5. DEF reduces NOx emissions in the exhaust gas system of your SCR equipped diesel vehicle, whether it be a truck, bus, automobile or an off road vehicle.
6. We reliably supply the highest quality DEF via a network of distributors across the USA and Canada, so you are never far away from an Air1 distributor or retail outlet.
7. Do not use this App for any other purpose than Heavy Duty Vehicle refills.
8. You can be sure your SCR vehicle will function flawlessly by using Air1's DEF.
9. Air1 complies with the highest industry standards in DEF.
10. Air1® is a registered trademark of Yara International ASA.
11. We only list Yara accredited DEF stations.
12. Liked DEF? here are 5 Navigation apps like Google Maps; Waze Navigation & Live Traffic; ParkMobile - Find Parking; Transit • Subway & Bus Times; SpotHero: #1 Rated Parking App;
Or follow the guide below to use on PC:
Select Windows version:
Install DEF app on your Windows in 4 steps below:
Download a Compatible APK for PC
| Download | Developer | Rating | Current version |
|---|---|---|---|
| Get APK for PC → | Yara International | 1.00 | 2.2.2 |
For Windows 11, check if there's a native DEF Windows app here » ». If none, follow the steps below:
| Minimum requirements | Recommended |
|---|---|
|
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- Search by city, state or post code
- Picks up your current location via GPS
- Calculate distance to Air1’s nearest filling station
- View filling station address details
- Easy access and fast fill pump stations for Heavy Duty vehicles
- Route Planner shows you the way
- Updated monthly
- Provides information on DEF and its benefits for SCR equipped diesel vehicles
- Only lists Yara bulk retailers, not suitable for small vehicles e.g. Passenger cars and other small tank vehicles.
Owner Operator
Does it work?
PC Apps 
