How long does DEF fluid Last per gallon?
You should get around 3000 miles per tank DEF. Most DEF tanks require one gallon of DEF for every 50 gallons of diesel fuel, and one gallon will generally last between 300 to 500 miles.
Why is my Def warning message saying Poor exhaust fluid quality?
DEF fluid can degrade over time. This message indicates the quality of the DEF fluid is poor. What needed to be done is the DEF tank drained completly to remove the poor quality DEF fluid, then new DEF fluid put in and then run the DEF quality test to force the system to run a quality test.
What do you need to know about diesel exhaust fluid?
Chemically, DEF is firstly comprised of (NH2)2CO; and when injected into the hot exhaust gas the water evaporates leaving ammonia and isocyanic acid. 2. How Often Do You Need To Fill Up the DEF Tank? That question specifically depends on miles per gallon and usage of the diesel truck in question.
What happens when DEF is mixed with exhaust?
Most DEF products are regulated by the American Petroleum Institute. Lets take a look at the science behind DEF when mixed with exhaust. Chemically, DEF is firstly comprised of (NH2)2CO; and when injected into the hot exhaust gas the water evaporates leaving ammonia and isocyanic acid.
Is the exhaust fluid in my Duramax poor?
2011 Chevrolet Duramax with a Poor Quality Exhaust Fluid message and the vehicle is limited to 55mph now. DEF fluid tank is full with Peak DEF … read more ASE Certified Master Techn… My 2011 Gmc diesel truck just got a msgs service exhaust system. What can I do? And other msgs 50 miles limited … read more
DEF fluid can degrade over time. This message indicates the quality of the DEF fluid is poor. What needed to be done is the DEF tank drained completly to remove the poor quality DEF fluid, then new DEF fluid put in and then run the DEF quality test to force the system to run a quality test.
What happens when exhaust fluid empty message clears?
If the vehicle is driven prior to the Exhaust Fluid Empty message clearing, the vehicle will still be speed limited. If the Exhaust Fluid Empty message clears while driving, the vehicle must be brought to a complete stop to release the speed limitation.
When to add DEF tank to exhaust fluid?
TIP: DEF should be added prior to receiving an Exhaust Fluid Empty DIC message; however, it may take several miles of driving for the DIC message to update. • 4 MPH MAX SPEED NEXT FUEL FILL (Vehicle speed limited to 4 mph (7 km/h) after the second fuel fill without refilling the DEF tank.) Wonder what code number you received?
What does Pip mean for diesel exhaust fluid?
This PI is to assist with vehicles that have difficulty completing the DEF (diesel exhaust fluid) quality test and/or clearing the Exhaust Fluid Quality Poor Message. Complete the current SI diagnostic for any trouble codes or symptoms found.