Diesel Exhaust Fluid is a type of solution that is designed for use in different vehicles’ selective catalytic reduction systems (SCR systems). SCR is an advanced technology system that is used for emissions control to reduce emissions of nitrogen oxides down to near-zero levels in the new diesel vehicles.
Azure is southern California’s DEF and coolant leader and wholesaler that wants to help you fulfill your handling and storage ambitions. This company delivers its products such as AUS32, AUS40, and 50% Urea-Aqueous in bulk DEF solutions, mini-bulk storage, or a diesel exhaust fluid tank for diesel-powered vehicles and equipment.
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DEF for Passenger Vehicles
These days, based on the new strict regulations on the emission levels of NOx, diesel exhaust fluid and selective catalytic reduction technology have been considered in passenger vehicles. Electric-powered cars, SUVs, campers, vans, light trucks, and pickup trucks are some types of vehicles that follow the structures.
BMW, Mercedes Benz, and Volkswagen are the pioneers in introducing this system to the passenger vehicle market. Recently, other manufacturers such as Toyota, Mazda, GM, and Ford have followed the suit. It seems that this system with DEF fluid will be a trend for all manufacturers all around the world in the coming years.
DEF for Commercial Vehicles
Different types of commercial vehicles
| HGVs or LGV
(A heavy goods vehicle/ A large goods vehicle) |
Any large vehicle with a weight over 3500 kilograms (such as a truck) |
| LCVs
(Light commercial vehicles) |
any passenger vehicle or goods carrier over 7,500 kilograms (such as a tractor, van, or heavy truck) |
| PCVs
(Passenger carrying vehicles) |
Such as a bus, minibus, and coaches |
The Clean Air Act, as a primary federal air quality law in 2010 had effects on commercial vehicle manufacturers as well. These legal requirements made them use selective catalytic reduction technology with an operating fluid that is called DEF.
DEF for Non Road Mobile Machinery
Non Road vehicles that use diesel such as farm machinery, Mobile and static cranes, airport and dockside vehicles, construction equipment, and mining machinery have to implement the nitrogen oxides (NOx) emission limits.
These new emission standards have led diesel engine manufacturers to think about optimizing engines.
AUS 32 (32.5% DEF solution) is the most common type of diesel exhaust fluid that is used in the most heavy-duty diesel trucks after 2010. This solution has contained Urea (32.5%) and deionized water (67.5%).
DEF for Trains
Diesel trains or locomotives are the other types of vehicles that use Adblue fluid to reduce nitrogen oxides emissions. This technology is only used in some trains that are equipped with SCR systems.
On the train chassis, there is a separate tank where you can fill the DEF fluid in it. In this process, blue DEF is injected into the exhaust pipe. So, the harmful NOx molecules are converted into nitrogen and water that are harmless.
DEF for ships (Marine DEF)
DEF is not only for diesel engines in land vehicles, but also this solution can sometimes be used in high combustion diesel engines such as water-based craft as well.
AUS 40 or 40% DEF solution is a diesel exhaust fluid solution that contains 40% urea and 60% deionized water. Although this solution often is used in water-based craft and most of the time known as “marine DEF”, it is also used in locomotive-and-land based applications.
If you are looking for a good source for AUS 32 diesel exhaust fluid, Azure is in Southern California to help you.
Conclusion
As we said, DEF is a useful solution that is injected into the exhaust of road and non-road vehicles and helps diesel-powered equipment operators and manufacturers to take part in promoting a sustainable environment and remain compliant with federal and state environmental regulations.
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Reference
Diesel Technology Forum, (2022, -), ABOUT CLEAN DIESEL WHAT IS SCR? Diesel Technology Forum
https://www.dieselforum.org/about-clean-diesel/what-is-scr
Yara, (2022, -), What is Diesel Exhaust Fluid? Yara
https://www.yara.us/chemical-and-environmental-solutions/diesel-exhaust-fluid/
Azure Def, (2022, -), DIESEL EXHAUST FLUID (DEF), Azure Def
