Ford 2013 F-650 Owner's Manual page 124

Incorrect DEF Quality Warning Indications and Vehicle
Condition
Correct DEF quality.
Initial warning when
incorrect DEF
quality is detected.
Initial warning one
hour after incorrect
DEF quality is
detected.
Initial warning three
hours after incorrect
DEF quality is
detected.
Final vehicle
consequence three
hours after incorrect
DEF quality is
detected and engine
intentionally shut
down (key off), in
extended idle for
one hour or fuel
*
tank refilled.
*
Refueling the fuel tank is defined as increasing the fuel volume level by
15%.
**
Final consequence for vehicles equipped with a manual transmission is
1000 RPM. Final consequence for vehicles equipped with an automatic
transmission is 1100 RPM.
2013 F-650/750 (f67)
Owners Guide gf, 2nd Printing, March 2013
USA (fus)
Fuel and Refueling
Consequences
Indicator
Consequence
Lamps
None. None.
Amber engine
None.
solid
Amber engine
25% torque
reduction.
solid
Torque
reduction
increases
Amber engine
from 25% to
solid
40% at rate of
1% each
minute.
• 25% torque
reduction
• 5 mph
Amber engine
(8 km/h)
solid /
vehicle speed
Red engine
limit
solid
• 1000 RPM
engine speed
**
limit.
123
Remedy
None.
Replace DEF
with
Ford-approved