Air1® Diesel Exhaust Fluid (DEF)

Diesel Exhaust Fluid (DEF) is a pure, aqueous solution of urea and water, to be used in new diesel SCR engine technology. AIR1® DEF is API certified to guarantee product quality.

Performance Features & Benefits:

  • Meets automotive industry specification defined by ISO 22241
  • Required in trucks using SCR technology, DEF helps reduce emissions of NOx gases that are produced inside the engine during combustion


Air1® is a registered trademark of Yara International ASA. Produced by Yara.