
•
Turn the ignition off before fueling; an
inaccurate reading results if the engine
is left running.
• Use the same fill rate
(low-medium-high) each time the tank
is filled.
• Allow no more than two automatic
click-offs when filling.
Results are most accurate when the filling
method is consistent.
Calculating Fuel Economy
Do not measure fuel economy during the
first 1000 miles (1600 kilometers) of
driving (this is your engine ’s break-in
period); a more accurate measurement is
obtained after 2000 miles - 3000 miles
(3200 kilometers - 4800 kilometers). Also,
fuel expense, frequency of fill ups or fuel
gauge readings are not accurate ways to
measure fuel economy.
1. Fill the fuel tank completely and record
the initial odometer reading.
2. Each time you fill the tank, record the amount of fuel added.
3. After at least 3 to 5 tank fill ups, fill the
fuel tank and record the current
odometer reading.
4. Subtract your initial odometer reading from the current odometer reading.
5. Calculate fuel economy by dividing miles traveled by gallons used (For
Metric: Multiply liters used by 100, then
divide by kilometers traveled).
Keep a record for at least 1 month and
record the type of driving (city or highway).
This provides an accurate estimate of the
vehicle ’s fuel economy under current
driving conditions. Additionally, keeping
records during summer and winter show
how temperature impacts fuel economy.
In general, lower temperatures mean lower
fuel economy. Conditions
•
Heavily loading a vehicle or towing a
trailer may reduce fuel economy at any
speed.
• Carrying unnecessary weight may
reduce fuel economy (approximately
1 mpg [0.4 km/L] is lost for every 400
pounds [180 kilograms] of weight
carried).
• Adding certain accessories to your
vehicle (for example bug deflectors,
rollbars/light bars, running boards, ski
racks) may reduce fuel economy.
• Using fuel blended with alcohol may
lower fuel economy.
• Fuel economy may decrease with lower
temperatures during the first 8– 10
miles (12 –16 kilometers) of driving.
• Driving on flat terrain offers improved
fuel economy as compared to driving
on hilly terrain.
• Transmissions give their best fuel
economy when operated in the top
cruise gear and with steady pressure
on the gas pedal.
• Close windows for high speed driving.
EMISSION CONTROL SYSTEM WARNINGS
Do not park, idle, or drive your vehicle
in dry grass or other dry ground cover.
The emission system heats up the
engine compartment and exhaust system,
which can start a fire. Exhaust leaks may result in entry of
harmful and potentially lethal fumes
into the passenger compartment. If
you smell exhaust fumes inside your
vehicle, have your dealer inspect your
vehicle immediately. Do not drive if you
smell exhaust fumes. 137
Super Duty (TFA) Fuel and Refueling

PARKING BRAKE
WARNING
Always set the parking brake fully
and make sure the transmission
selector lever is placed in position P.
Failure to set the parking brake and engage
park could result in vehicle roll-away,
property damage or bodily injury. Turn the
ignition to the lock position and remove
the key whenever you leave your vehicle. Apply the parking brake whenever your
vehicle is parked. Press the pedal
downward to set the parking brake. The
brake warning lamp in the instrument
cluster will illuminate and remains
illuminated until the parking brake is
released.
To release, pull the brake release lever
located at the lower left side of the
instrument panel.
If you are parking your vehicle on a grade
or with a trailer, press and hold the brake
pedal down, then set the parking brake.
There may be a little vehicle movement as
the parking brake sets to hold the vehicle's
weight. This is normal and should be no
reason for concern. If needed, press and
hold the service brake pedal down, then
try reapplying the parking brake. Chock the
wheels if required. If the parking brake
cannot hold the weight of the vehicle, the
parking brake may need to be serviced or
the vehicle may be overloaded.
HILL START ASSIST
WARNINGS
The system does not replace the
parking brake. When you leave your
vehicle, always apply the parking
brake and put the vehicle in position P. WARNINGS
You must remain in your vehicle once
you have activated the system.
During all times, you are responsible
for controlling your vehicle,
supervising the system and
intervening, if required. If the engine is revved excessively, or
if a malfunction is detected, the
system will be deactivated.
The system makes it easier to pull away
when your vehicle is on a slope without the
need to use the parking brake.
When the system is active, your vehicle will
remain stationary on the slope for two to
three seconds after you release the brake
pedal. This allows you time to move your
foot from the brake to the accelerator
pedal. The brakes are released
automatically once the engine has
developed sufficient drive to prevent your
vehicle from rolling down the slope. This
is an advantage when pulling away on a
slope, (for example from a car park ramp,
traffic lights or when reversing uphill into
a parking space).
The system will activate automatically on
any slope that will cause significant vehicle
rollback.
Using Hill Start Assist
1. Press the brake pedal to bring your
vehicle to a complete standstill. Keep
the brake pedal pressed.
2. If the sensors detect that your vehicle is on a slope, the system will activate
automatically.
159
Super Duty (TFA) Brakes

LOAD LIMIT
Vehicle Loading - with and
without a Trailer
This section will guide you in the
proper loading of your vehicle,
trailer or both, to keep your loaded
vehicle weight within its design
rating capability, with or without
a trailer. Properly loading your
vehicle will provide maximum
return of vehicle design
performance. Before loading your
vehicle, familiarize yourself with
the following terms for
determining your vehicle
’s weight
ratings, with or without a trailer,
from the vehicle ’s Tire Label or
Safety Compliance Certification
Label:
Base Curb Weight - is the weight
of the vehicle including a full tank
of fuel and all standard
equipment. It does not include
passengers, cargo, or optional
equipment.
Vehicle Curb Weight -
is the
weight of your new vehicle when
you picked it up from your
authorized dealer plus any
aftermarket equipment. Payload -
is the combined weight
of cargo and passengers that the
vehicle is carrying. The maximum
payload for your vehicle can be
found on the Tire Label on the
B-Pillar or the edge of the driver
door (vehicles exported outside
the US and Canada may not have
a Tire Label). Look for
“THE
COMBINED WEIGHT OF
OCCUPANTS AND CARGO
SHOULD NEVER EXCEED XXX
kg OR XXX lb. ” for maximum payload. The payload listed on the
Tire Label is the maximum
payload for the vehicle as built by
the assembly plant. If you install
any aftermarket or
authorized-dealer installed
equipment on the vehicle, you
must subtract the weight of the
equipment from the payload listed
on the Tire Label in order to
determine the new payload.
174
Super Duty (TFA) Load CarryingE143816PAYLOAD

WARNING
The appropriate loading
capacity of your vehicle can
be limited either by volume
capacity (how much space is
available) or by payload capacity
(how much weight the vehicle
should carry). Once you have
reached the maximum payload of
your vehicle, do not add more
cargo, even if there is space
available. Overloading or
improperly loading your vehicle
can contribute to loss of vehicle
control and vehicle rollover. Example only:
175
Super Duty (TFA) Load CarryingE142516

Cargo Weight - includes all
weight added to the Base Curb
Weight, including cargo and
optional equipment. When towing,
trailer tongue load or king pin
weight is also part of cargo weight.
GAW (Gross Axle Weight) -
is
the total weight placed on each
axle (front and rear) including
vehicle curb weight and all
payload. GAWR (Gross Axle Weight
Rating) -
is the maximum
allowable weight that can be
carried by a single axle (front or
rear). These numbers are shown
on the Safety Compliance
Certification Label. The label shall
be affixed to either the door hinge
pillar, door-latch post, or the door
edge that meets the door-latch
post, next to the driver's seating
position. The total load on each
axle must never exceed its
Gross Axle Weight Rating.
176
Super Duty (TFA) Load CarryingE142517 E143817CARGO

Note:
For trailer towing
information refer to the RV and
Trailer Towing Guide available at
an authorized dealer. GVW (Gross Vehicle Weight) -
is the Vehicle Curb Weight, plus
cargo, plus passengers.
GVWR (Gross Vehicle Weight
Rating) - is the maximum
allowable weight of the fully
loaded vehicle (including all
options, equipment, passengers
and cargo). It is shown on the Safety Compliance Certification
Label. The label shall be affixed
to either the door hinge pillar,
door-latch post, or the door edge
that meets the door-latch post,
next to the driver's seating
position.
The Gross Vehicle
Weight must never exceed the
Gross Vehicle Weight Rating.
Example only: 177
Super Duty (TFA) Load CarryingE143818GVW E142523

WARNING
Exceeding the Safety
Compliance Certification
Label vehicle weight rating limits
could result in substandard
vehicle handling or performance,
engine, transmission and/or
structural damage, serious
damage to the vehicle, loss of
control and personal injury. GCW (Gross Combined Weight)
- is the Gross Vehicle Weight plus
the weight of the fully loaded
trailer. GCWR (Gross Combined
Weight Rating) - is the maximum
allowable weight of the vehicle
and the loaded trailer, including
all cargo and passengers, that the
vehicle can handle without risking
damage. (Important: The towing
vehicle
’s braking system is rated
178
Super Duty (TFA) Load CarryingE142524 E143819GCW
GVW

for operation at Gross Vehicle
Weight Rating, not at Gross
Combined Weight Rating.)
Separate functional brakes should
be used for safe control of towed
vehicles and for trailers where the
Gross Combined Weight of the
towing vehicle plus the trailer
exceed the Gross Vehicle Weight
Rating of the towing vehicle.
The
Gross Combined Weight must
never exceed the Gross
Combined Weight Rating.
Maximum Loaded Trailer
Weight - is the highest possible
weight of a fully loaded trailer the
vehicle can tow. It assumes a
vehicle with mandatory options,
driver and front passenger weight
(150 pounds [68 kilograms]
each), no cargo weight (internal
or external) and a tongue load of
10– 15% (conventional trailer) or
king pin weight of 15– 25% (fifth
wheel trailer). Consult an
authorized dealer (or the RV and
Trailer Towing Guide available at
an authorized dealer) for more
detailed information.
Tongue Load or Fifth Wheel
King Pin Weight -
refers to the
amount of the weight that a trailer
pushes down on a trailer hitch. Examples:
For a 5000 pound
(2268 kilogram) conventional
trailer, multiply 5000 by 0.10 and
0.15 to obtain a proper tongue
load range of 500 to 750 pounds
(227 to 340 kilograms). For an
11500 pound (5216 kilogram) fifth
wheel trailer, multiply by 0.15 and
0.25 to obtain a proper king pin
load range of 1725 to 2875 pounds
(782 to 1304 kilograms). WARNINGS
Do not exceed the GVWR or
the GAWR specified on the
Safety Compliance Certification
Label. Do not use replacement tires
with lower load carrying
capacities than the original tires
because they may lower the
vehicle ’s GVWR and GAWR
limitations. Replacement tires
with a higher limit than the original
tires do not increase the GVWR
and GAWR limitations. Exceeding any vehicle weight
rating limitation could result
in serious damage to the vehicle
and/or personal injury. Steps for determining the
correct load limit:
1. Locate the statement "The
combined weight of occupants
and cargo should never exceed
XXX kg or XXX lb." on your
vehicle ’s placard.
179
Super Duty (TFA) Load Carrying