Ford F-650 2015 Owner's Manual page 116

Incorrect DEF Quality Warning Indications and Vehicle
Condition
Correct DEF quality.
Initial warning when
detecting incorrect
DEF quality.
Initial warning one
hour after detecting
incorrect DEF
quality.
Initial warning three
hours after detecting
incorrect DEF
quality.
Final vehicle
consequence three
hours after detecting
incorrect DEF
quality and engine
intentionally shut
down (key off), in
extended idle for
one hour or fuel
*
tank refilled.
*
Refueling the fuel tank is increasing the fuel volume level by at least
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.
2015 F-650/750 (f67)
Owners Guide gf, 2nd Printing, April 2014
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.
115
Remedy
None.
Replace DEF
with
Ford-approved