What You Need to Know about Diesel Exhaust Fluid
Diesel Exhaust Fluid (DEF) is what we call the high quality operating fluid that is used jointly with diesel vehicles and selective catalytic reduction (SCR) technology. It is a 32.5% solution of high-purity, synthetically manufactured, urea in de-mineralized water. It is placed into a separate tank on the truck, and is simple to handle, non-toxic and safe for use. Diesel Exhaust Fluid (DEF) consumption is calculated as a ratio of diesel fuel use, also referred to as the “dosing rate” or “treat rate”. Medium- and heavy-duty vehicles normally have a dosing rate of 2-3%. Here are a number of the most crucial things that you need to know about diesel exhaust fluid.
Roles of DEF
Majority of the diesel-powered on-road vehicles manufactured since 2010 make use of SCR technology and require DEF. A few examples are heavy-duty trucks, diesel pick-ups, delivery vans, and European luxury cars. Diesel powered off-road equipment like those used for agricultural and construction has been mandated to use SCR technology since 2014.
Maintaining DEF Purity
DEF purity is critical. One significant factor consideration in preserving DEF purity and quality is the kind of dispensing system employed. Closed system containers have a valve coupling system that protects the container opening on drums and totes (IBC) to prevent debris, dirt, bugs, etc from getting into the container and contaminating the DEF. Contrastingly, open system containers are drums or totes that do not have a valve insert in the container’s opening, which implies that dirt or debris can get into the container and pollute the DEF.
Owing to the fact that majority of diesel-powered passenger cars and trucks manufactured since 2010 are furnished with Selective Catalytic Reduction (SCR) and require DEF, it is can easily be bought at most fueling stations. Truck stops also usually have a DEF pump right on the fuel island. You can also purchase DEF at most OEM locations, as well as other dealers and distributors.
Running Out of DEF
The EPA directs all truck manufacturers to include some type of staged warning system (some provide actual gauges) to let the the driver be aware about exactly how near to empty the system is. Whether a vehicle goes into a “limp home” or diminished engine power or restricts the number of times you can turn the engine on relies on the particular car or truck model, but at some point it will not start. In essence, you should treat your DEF tank the same way you treat your fuel tank; you definitely do not want to leave yourself stranded because you did not pay attention to the indicators.