Incorrect DEF Quality Warning Indications and Vehicle
Consequences for Emergency Vehicles
Condition
Indicator
Lamps
Consequence
Remedy
Correct DEF quality.
None.
None.
None.
Initial warning when
detecting incorrect
DEF quality.
Amber engine
solid
None.
Replace DEF
with
Ford-approved
DEF.
Initial warning
10 hours after
detecting incorrect
DEF quality.
Amber engine
solid
None.
Final vehicle
consequence
20 hours after
detecting incorrect
DEF quality and
engine intentionally
shut down (key off),
in extended idle for
one hour or fuel
tank refilled.
*
Amber engine
solid
None.
114
Fuel and Refueling
2015 F-650/750
(f67)
Owners Guide gf
(ownloose)
, 1st Printing, December 2013
Canadian_French
(fr_can)