Is DEF fluid good after it freezes?
Like water, DEF will expand up to seven percent when frozen and can damage a truck’s DEF-storage tank if it is full or nearly full when it freezes. Keeping a tank that you think may freeze less than full is a good idea.
Is it OK for DEF to freeze?
Diesel Exhaust Fluid or DEF Fluid Whether in storage tanks or in equipment, DEF can freeze and possibly cause issues. As temperatures drop below 12°F, DEF will begin to solidify and not work as intended.
What happens to diesel exhaust fluid when it freezes?
Q3: What happens if DEF freezes? A: While DEF does freeze at 12 degrees F, frozen DEF does not impact the start-up or operation of the vehicle. Upon engine start-up, the SCR system provides heat to the DEF tank and lines which allows theDEF to thaw rapidly and keeps it flowing to the aftertreatment system regardless of the outside temperature.
Where can I get diesel exhaust fluid for my car?
A: Because almost all diesel-powered passenger cars and trucks built since 2010 are equipped with Selective Catalytic Reduction (SCR) and require Diesel Exhaust Fluid (DEF), it is readily available at most fueling stations and automotive parts retail stores. Truck stops often have a DEF pump right on the fuel island.
What happens to NOx in diesel exhaust fluid?
The DEF as part of the Selective Catalytic Reduction system (SCR) turns NOx into pure nitrogen and water vapor. Climate change is a heated debate but we can all agree that spewing more gasses of any kind into the environment isn’t something we need more of.
How long does DEF Diesel Exhaust Fluid last?
HOW LONG DOES DIESEL FLUID LAST? Diesel exhaust fluid normally has a shelf life of about two years. However, exposure to sunlight or sustained high temperatures can compromise it.
What happens when Diesel Exhaust Fluid ( DEF ) freezes?
A large part of Diesel Exhaust Fluid (DEF) is de-ionized water, do I have to worry about the tank or other parts of the Selective Catalytic Reduction (SCR) system freezing? Does DEF evaporate, and what happens if it does? What is the difference between agricultural urea and the urea used in Diesel Exhaust Fluid (DEF)?
How does the exhaust fluid in a truck work?
Diesel Exhaust Fluid is an important component in keeping heavy-duty trucks and machinery operating within emission guidelines. It is an ammonia-based fluid that is injected into the catalyst and a chemical reaction breaks down the NOx into nitrogen, water and small amounts of CO2.
The DEF as part of the Selective Catalytic Reduction system (SCR) turns NOx into pure nitrogen and water vapor. Climate change is a heated debate but we can all agree that spewing more gasses of any kind into the environment isn’t something we need more of.
Why do service stations use def exhaust fluid?
Also to blame: well-meaning service station attendants, techs at non-diesel shops, and even owners of gas rigs hoping to reap the benefit of increased fuel economy. The truth, of course, is that DEF is only useful in a rig with a DEF system, which consists of a separate tank, filler cap and fluid lines as well as a specialized exhaust system.