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Everything You Should Know about Diesel Exhaust Fluid

Diesel Exhaust Fluid (DEF) refers to a high quality operating fluid that is employed in combination with diesel vehicles and selective catalytic reduction (SCR) technology. It is a 32.5% solution of high-purity, synthetically created, urea in de-mineralized water. It is filled into a separate tank on the car, and is simple to manage, non-toxic and safe for use. Diesel Exhaust Fluid (DEF) consumption is quantified as a ratio of diesel fuel use, also known as the “dosing rate” or “treat rate”. Medium- and heavy-duty vehicles normally have a dosing rate of 2-3%. Below are a few of the most essential things that you must know about diesel exhaust fluid.

Functions of DEF

Nearly all diesel-powered on-road vehicles manufactured since 2010 utilize SCR technology and require DEF. Several examples are heavy-duty trucks, diesel pick-ups, delivery vans, and European luxury cars. Diesel powered off-road equipment such as those utilized in agricultural and construction has been required 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 involve a valve coupling system that secures the container opening on drums and totes (IBC) to prevent debris, dirt, bugs, etc from gaining access to 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.

Purchasing DEF

Due to the fact that almost all diesel-powered passenger cars and trucks made since 2010 are equipped with Selective Catalytic Reduction (SCR) and require DEF, it is available to be purchased at most fueling stations. Truck stops also normally 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 Low on DEF

The EPA orders all truck manufacturers to provide some kind of staged warning system (some include actual gauges) to inform the driver about precisely how close to empty the system is. Whether a vehicle goes into a “limp home” or decreased engine power or restrains the number of times you can turn the engine on will be reliant on the actual car or truck model, but at some point it will not start. To put it simply, you should treat your DEF tank the same way you treat your fuel tank; you surely do not want to leave yourself stranded because you failed to notice the indicators.

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