Diesel Exhaust Fluid
Download BLUEDEF - Diesel Exhaust Fluid
Diesel exhaust fluid is one of the key elements of the Selective Catalytic Reduction (SCR) process used by most medium and heavy-duty engine builders to meet EPA 2010 regulations.
BlueDEF™ is a nontoxic solution of 67.5% purified water and 32.5% ultra pure automotive grade urea. BlueDEF™ is not a fuel or fuel additive. Instead, when injected into the exhaust stream and passed over a catalyst, BlueDEF helps convert NOx into nitrogen gas and water vapor - two harmless and natural components of the air we breathe.
BlueDEF™ is stable, colorless and odorless, and meets ISO Standards 22241 for purity and composition and is an American Petroleum Institute (API) certified diesel exhaust fluid. These are the highest quality and safety standards in place to ensure optimum SCR performance.
Making sure you do not run out of BlueDEF™ in a SCR equipped truck is simple - watch the Diesel Exhaust Fluid (DEF) gauge, which is part of the diesel fuel gauge, for when it is time to refill.
DEF is stored in a dedicated tank next to the fuel tank on the driver's side. The tanks range in size from 6 to 23 gallons depending on the truck's application. The DEF tank fill opening is designed to accommodate a DEF fill nozzle to ensure only DEF is put into the tank. A diesel fuel nozzle will not fit into the DEF tank opening.
How much DEF will my truck use?
One gallon of BlueDEF™ is used approximately every 300 miles. A truck with a 20 gallon DEF tank can go up to 6,000 miles between fill-ups.
Will a truck stop if it runs out of DEF?
No. An engine will not be shut down or be unable to restart as a result of running out of Blue- DEF™. However, if the DEF tank is empty, engine horsepower will de-rate and BlueDEF™ should be added to the tank.
Will DEF freeze in cold weather?
DEF begins freezing at 12° Fahrenheit (-11° Celsius). If DEF freezes, the engine will start and run properly (no de-rate or malfunctioning lights). A DEF tank heater will thaw the fluid for use and at no point will this affect the operation of the engine.
What are the advantages of SCR technology?
By treating the exhaust gases outside of the engine and using less EGR, SCR technology can provide up to 5% better fuel economy.
SCR technology offers better engine reliability, reducing downtime
SCR causes no additional wear on the engine
The trucking industry believes SCR is the best EPA 2010 solution based on environmental advantages and payback to fleet owners. OEMs prefer SCR because it's proven - it's been around for years, with hundreds of thousands of SCR equipped commercial vehicles in operation in Europe since 2006.
Diesel Emissions Reduction Requirements
EPA 2010 is the final phase of the Environmental Protection Agency's (EPA) plan to assure that medium-duty and heavy-duty trucks run cleaner by the year 2010. In fact, EPA 2010 standards require that NOx levels from new trucks be reduced to almost zero.
Faced with strict and well defined engine emission regulations, the trucking industry has worked hard to meet these important environmental regulations, while ensuring that maximum fuel efficiency and engine performance was not sacrificed.
In order to meet the new EPA 2010 requirements, most diesel engine manufacturers are using Selective Catalytic Reduction (SCR) technology. The SCR system uses diesel exhaust fluid to convert NOx emissions into nitrogen and water vapor two harmless and natural components of the air we breathe.
SCR technology, and the integral role diesel exhaust fluid plays, has been successfully used in Europe for years and has proven to provide near-zero NOx emission levels while delivering improved fuel economy and engine reliability.
What is NOx?
Oxides of Nitrogen (NOx) are an exhaust element that contributes to acid rain, smog and greenhouse gas levels. This environmental pollutant is a by product of the high temperature diesel combustion process. The hotter the combustion temperature, the more NOx is created.
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