Continued driving without refilling will result in the following actions as
required by the U.S. Environmental Protection Agency (EPA):
DEF Low Level Warning and Vehicle Consequence
DEF Level
Indicator
Lamps
Consequence Remedy
Above initial
warning threshold
(Tank above 10%
full)
None None None
Below initial
warning threshold
(Tank 10% full)
DEF solid
None
Add a minimum
of 1 gallon (3.8L)
of DEF to
5 gallon (19.0L)
tank or a
minimum of
2 gallons (7.6L)
of DEF to
9 gallon (34.0L)
tank
Below critical
warning threshold
(Tank 5% full)
DEF
blinking
None
Below initial
derate level (Tank
2.5% full)
DEF
blinking
/
Amber warning
solid
25% torque
reduction
Tank empty +
engine
intentionally shut
down or in
extended idle
DEF
blinking
/
Amber warning
solid
/
Red engine
solid
25% torque
reduction and
5 mph
(8 km/h)
vehicle speed
limit
Filling the DEF tank
Your vehicle is equipped with a DEF tank with a blue-capped filler port
The 5 gallon (19.0L) DEF tank is located on the left side of the vehicle
under the cab and the 9 gallon (34.0L) DEF tank is located on the right
side of the vehicle behind the Regular Cab and Super Cabs and under the
Crew Cab. The tank can be filled using a nozzle at a DEF filling station
(similar to fuel fill) or using a DEF bottle with a spout. Motorcraft威 brand
DEF bottles are recommended. Other aftermarket bottles can be used but
it should have a seal on the spout and an internal vent tube to achieve best
fill performance and prevent overfilling.
Maintenance and Specifications
202
2011 F-650/750 (f67)
Supplement, 2nd Printing
USA (fus)
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