DEF Flashcards
DEF fluid should be stored at temperatures between ___ and has a minimum shelf life of ___.
10°F - 90°F / 12 months
The ___ Diesel Exhaust Fluid reservoir is located in the driver’s side rear wheel fender. The reservoir has a blue cap and is accompanied by a DEF fluid only label.
4.5 gallon
DEF will freeze around ___.
11°F
Diesel exhaust fluid is a solution of ___ urea and deionized water
32.5%
The nitrogen oxide and ammonia pass into the SCR element where a catalytic reaction takes place, converting the nitrogen oxide into harmless _____.
nitrogen gas and water vapor
The HEST light will remain on until exhaust temperatures have dropped below ___.
977°F
Parked Regen RPM
960 RPM
If indoors, exhaust discharge pipe must be rated at least ___
1500°F
After completion of regeneration, the HEST light will remain illuminated until the exhaust outlet temperature is below 977°F or the vehicle speed exceeds ____.
5 mph
The maintenance interval is ____, or up to 6,750 hours, which is dependent on duty cycle, type of oil used, and oil consumption rate.
200,000-400,000 miles
DEF level between full and __ full:
DEF Fluid Low light will remain OFF.
100 - 38%
DEF level between __ full and ___ full:
DEF Fluid Low light will illuminate solid.
38% - 12%
DEF level below 12% full: DEF Fluid Low light will ___.
flash
DEF level below__ full (1/4 gallon remaining):
DEF Fluid Low light flashing and amber ___ lit solid.
5% / Check Engine
DEF tank empty and system can no longer maintain DEF pressure:
DEF Fluid Low light flashing, amber Check Engine lit solid, and MIL light lit solid.
