Diesel Exhaust Fluid (DEF) is becoming a necessity for diesel truck owners as older vehicles, pre-2010 trucks, grow obsolete. All new trucks are required to use this fluid so that their emissions control systems will work. This begs the question, what exactly is DEF and what does it do?

Understanding DEF Use

While DEF is not new, it has been recently made far more important for diesel drivers. DEF is the main companion to the Selective Catalytic Reduction (SCR) systems that were mandated by the EPA. Simply put, these two pieces work together to help reduce dangerous gases, like carbon monoxide and carbon dioxide, from polluting the air. Instead, an SCR-equipped engine will first catch particulates through a filter, and then spray the remaining exhaust with the DEF. The exhaust and diesel exhaust fluid are then changed from those pollutants into harmless water and nitrogen. With all these steps in place, those large black exhaust clouds are a thing of the past!

Buying DEF

Even though DEF has become mandatory for those driving new trucks, it is still not very convenient to refill it. Usually, one would find DEF only available in 2.5-gallon jugs at gas stations or truck stops around the country. This can be inconvenient and can end up costing you more at the end of the day. Along with these traditional options, Jubitz is happy to offer DEF at the pump, making refilling as easy and convenient as refueling your tank. Now, drivers can have options that best suit them, whether stocking up on DEF or filling up their tank.

Tips for Fleets

We currently offer these services at the Jubitz Truck Stop for retail customers and are expanding access to DEF at the pump to our cardlock customers as well.  DEF is now available at our sites in Washougal, Vancouver, and Portland. We also deliver bulk DEF in drums and totes in the greater Portland Metro area and Southwest Washington.