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Air 1 Diesel Exhaust Fluid


We offer Air 1 in the following sizes:

  • 2.5 gallons
  • 55 gallons
  • 275 gallons
  • Bulk

Air 1 Diesel Exhaust Fluid (DEF), is a high-purity solution of urea in deionized water. It is used to chemically reduce NOX emissions from trucks and buses powered by diesel engines. DEF is very susceptible to contamination making the handling process extremely important. Just one-tenth of one teaspoon of impurities can render a 6,500-gallon tank of DEF useless! Luckily, Air 1 and JB Dewar utilize a closed-distribution system, ensuring a contamination-free distribution of the product. Every JB Dewar employee is trained on how to keep DEF pure. We will make sure that when you purchase DEF, you have the right advice and instruction on all of the equipment and storage practices. We also have DEF Pumps and Dispensing Equipment available.


Our partnership with Pacific Pride, a nationwide network of commercial fueling stations, means our customers have access to over 1,300 locations across the United States. Through Pacific Pride we are able to provide convenient fueling at the most competitive and consistent prices.

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