Can you dilute DEF fluid?
The DEF will be diluted by the added water, but depending on the ratio of water to DEF, the solution may still contain enough urea to deal with the NOX via an increase in the injection rate.
How does Diesel Exhaust Fluid ( DEF ) work?
Diesel Exhaust Fluid or DEF for short, is a mixture of 32.5% Urea (for the ones that like chemistry: (NH2)2CO) and 67.5% de-ionised water. How does diesel exhaust fluid work? It is injected into the exhaust stream, where it’s water evaporates. The separation of Urea and Water due to heat, is called thermolysis. The chemical reaction is:
What are the standards for diesel exhaust fluid?
EPA standards: To call itself diesel exhaust fluid, the product must meet all EPA standards, especially ISO 22241. If you find a cheap product that claims to be diesel exhaust fluid, but it doesn’t meet ISO 22241 standards, don’t purchase it. Such a fluid could damage your vehicle’s SCR system.
When did diesel exhaust fluid start being used?
The fight to reduce NOx without the need to redesign the whole engine has intensified. Since around 2002, SCR (Selective Catalytic Reduction) systems that use Diesel Exhaust Fluid (DEF) made their appearance in the automotive market.
Where is the date code on diesel exhaust fluid?
Most likely it is on the front of the package near the bottom. This date code will tell the exact date the batch was produced and subsequently the age of the bottle of DEF. One gallon containers have a laser code imprinted on the bottle.
Diesel Exhaust Fluid or DEF for short, is a mixture of 32.5% Urea (for the ones that like chemistry: (NH2)2CO) and 67.5% de-ionised water. How does diesel exhaust fluid work? It is injected into the exhaust stream, where it’s water evaporates. The separation of Urea and Water due to heat, is called thermolysis. The chemical reaction is:
Most likely it is on the front of the package near the bottom. This date code will tell the exact date the batch was produced and subsequently the age of the bottle of DEF. One gallon containers have a laser code imprinted on the bottle.
The fight to reduce NOx without the need to redesign the whole engine has intensified. Since around 2002, SCR (Selective Catalytic Reduction) systems that use Diesel Exhaust Fluid (DEF) made their appearance in the automotive market.
What’s the best way to store diesel exhaust fluid?
67.5% of DEF is water. DEF freezes at -11 o C or 12.2 o F. When DEF thaws and goes back to liquid form, it maintains it consistency. It is suggested that you store DEF at a temperature between 5°C and 25°C (23°F and 77°F). How do I store DEF? Store in sealed containers to avoid contamination and avoid direct sunlight to prevent water evaporation.