Diesel Exhaust Fluid

Diesel Exhaust Fluid (DEF) is an aqueous urea solution blended with 32.5% high purity urea and 67.5% deionized water. DEF solution is used in Selective Catalytic Reduction (SCR) to lower NOx concentration in the exhaust emissions of diesel engines.

The solution may also be referred to as AUS32 or as AdBlue, a trademark held by the German Association of the Automobile Industry (VDA), which ensures quality standards are maintained in accord with ISO 22241 specifications.

Read more about Diesel Exhaust Fluid:  Chemistry, Storage

Other articles related to "diesel, exhaust, diesel exhaust fluid, fluid":

OBD-II PIDs - Standard PIDs
0.079 2 ... Fuel Rail Pressure (diesel, or gasoline direct inject) 0 655,350 kPa (gauge) ((A*256)+B) * 4 ... O2S1_WR_lambda(1) Equivalence ... Commanded EGR and EGR Error 01 6A 5 Commanded Diesel intake air flow control and relative intake air flow position 01 6B 5 Exhaust gas recirculation temperature 01 6C 5. 9 ... Exhaust Gas temperature (EGT) Bank 2 Special PID ...
Diesel Exhaust Fluid - Storage
... DEF is stored in a tank on board the vehicle, and injected into the exhaust stream by a metering system at a rate of 2% of diesel consumption volume (4-6% in Europe) ... This low dosing rate ensures long fluid refill intervals and minimises the tank's obtrusion into vehicle packaging space ... An Electronic control unit adjusts the addition of fluid in accord with such parameters as engine operating temperature and speed ...

Famous quotes containing the words fluid and/or exhaust:

    It is more than likely that the brain itself is, in origin and development, only a sort of great clot of genital fluid held in suspense or reserved.... This hypothesis ... would explain the enormous content of the brain as a maker or presenter of images.
    Ezra Pound (1885–1972)

    Language is like soil. However rich, it is subject to erosion, and its fertility is constantly threatened by uses that exhaust its vitality. It needs constant re-invigoration if it is not to become arid and sterile.
    Elizabeth Drew (1887–1965)