Misfilling Diesel Or Aftertreatment Def Tanks - Mack Granite GU Series Operator's Handbook Manual

Mack, EPA2010 Emissions Solution 263
Exit conditions for DEF Quality "5 mph road speed limit" Inducement:
First Restart: Return to 25% torque reduction until proper DEF quality evaluation. If
poor DEF quality is detected during the next monitoring cycle then the 5 mph limit is
resumed after vehicle is stationary for 20 minutes. After the second restart a Service
Tool is required to exit the 8 km/h (5 mph) RSL.

Misfilling Diesel or Aftertreatment DEF Tanks

Although diesel fuel and Aftertreatment
DEF caps are clearly labeled and filler
necks and nozzles are different accidents
can happen.
Contamination of fluids by- misfilling of
diesel or DEF in the wrong tank may result
in vehicle malfunction.
Results of misfilling DEF in Diesel Tank
•
Engine may run poorly or not at all
•
Injectors may be damaged
•
Exhaust system corrosion may
occur between turbocharger and
Aftertreatment DPF
•
On Board Diagnostic (OBD)
Diagnostic Trouble Codes (DTC)
•
Costly repairs
Results of misfilling Diesel in
Aftertreatment DEF Tank
•
Aftertreatment SCR system may be
damaged by Diesel
•
SCR Catalyst may be damaged by
diesel (chemical damage)
•
Emissions may be non-compliant
•
On Board Diagnostic (OBD)
Diagnostic Trouble Codes (DTC)
•
Costly repairs
Note: DEF tank has a magnetic interlock
and fuel station DEF fluid dispensing
nozzle with a magnetic valve, have to meet
to prevent from dispensing into anything
other than the DEF tanks.