2021 FORD SUPER DUTY fuel type

GENERAL INFORMATION
Use only approved wheel and tire sizes,
using other sizes could damage your
vehicle. If you change the diameter of the
tires from that fitted at the factory, the
speedometer may not display the correct
speed. If you intend to change the size of
the wheels from that fitted by the
manufacturer, you can check the suitability
with an authorized dealer.
Additional information related to the
functionality and maintenance of your tires
can be found later in this chapter. See Tire
Care (page 404).
You can find the recommended tire
inflation pressures can on the Tire Label,
which is on the B-pillar or the edge of the
driver door. You can also find this
information on the Safety Compliance
Certification Label, affixed to either the
door hinge pillar, door-latch post, or the
door edge that meets the door latch post;
next to the driver seating position.
We strongly recommend maintaining these
tire pressures at all times. Failure to follow
the tire pressure recommendations can
cause uneven treadwear patterns, reduced
fuel economy, and adversely affect the
way your vehicle handles.
Note: Check and set the tire pressure at the
ambient temperature in which you are
intending to drive your vehicle and when the
tires are cold.
Note: Check your tire pressures at least
once per month.
If your vehicle has a spare tire, set the
pressure to the highest value given for your
vehicle and tire size combination. Notice to utility vehicle and truck
owners WARNING:
Utility vehicles have a
significantly higher rollover rate than
other types of vehicles. WARNING:
Vehicles with a higher
center of gravity (utility and four-wheel
drive vehicles) handle differently than
vehicles with a lower center of gravity
(passenger cars). Avoid sharp turns,
excessive speed and abrupt steering in
these vehicles. Failure to drive cautiously
increases the risk of losing control of your
vehicle, vehicle rollover, personal injury
and death. WARNING:
In a rollover crash, an
unbelted person is significantly more
likely to die than a person wearing a
seatbelt. WARNING:
Do not become
overconfident in the ability of four-wheel
drive vehicles. Although a four-wheel
drive vehicle may accelerate better than
a two-wheel drive vehicle in low traction
situations, it won't stop any faster than
two-wheel drive vehicles. Always drive
at a safe speed.
Utility vehicles and trucks handle
differently than passenger cars in the
various driving conditions that are
encountered on streets, highways and
off-road. Utility vehicles and trucks are not
designed for cornering at speeds as high
as passenger cars any more than low-slung
sports cars are designed to perform
satisfactorily under off-road conditions.
402
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Wheels and Tires

Heated Exterior Mirrors .....................................
98
Memory Mirrors ................................................... 98
Power Exterior Mirrors........................................ 96
PowerScope ™ Power Telescoping
Mirrors.................................................................. 97
Puddle Lamps....................................................... 98
Spot Lamps........................................................... 98
Telescoping Mirrors.............................................. 97
Trailer Towing Camera System....................... 98
F
Fastening the Seatbelts..............................39
Fastening the Cinch Tongue............................ 40
Seatbelt Locking Modes..................................... 41
Using Seatbelts During Pregnancy...............40
Using the Seatbelt with Cinch Tongue (Front Center Seat on Super Cab and
Crew Cab).......................................................... 39
Flat Tire See: Changing a Road Wheel....................... 429
Floor Mats
.......................................................323
Fog Lamps - Front See: Front Fog Lamps........................................ 89
Foot Pedals See: Adjusting the Pedals................................. 84
Ford Credit
.........................................................15
US Only..................................................................... 15
Ford Protect...................................................563 Ford Protect Extended Service Plan
(CANADA ONLY).......................................... 564
Ford Protect Extended Service Plans (U.S. Only).................................................................. 563
Four-Wheel Drive
..........................................213
Front Axle Fluid Capacity and Specification..............................................466
Front Fog Lamps
............................................89
Front Fog Lamp Indicator................................. 89
Switching the Front Fog Lamps On or Off........................................................................\
. 89
Fuel and Refueling
.......................................184
Fuel Consumption........................................193
Advertised Capacity.......................................... 193
Fuel Economy...................................................... 193
Fuel Filter - 6.2L/7.3L..................................382
Fuel Quality - Diesel.....................................187 Biodiesel................................................................ 188
Diesel Fuel Additives ........................................ 189Fuel Requirements - Choosing The Right
Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Not Required ..........187
Fuel Requirements - Choosing The Right Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Required (United
States/Canada/Puerto Rico/U.S. Virgin
Islands And Other Locales) ...................... 187
Fuel Quality - E85........................................185 Choosing the Right Fuel - Flex Fuel
Vehicles............................................................. 185
Switching Between E85 and Gasoline............................................................ 186
Fuel Quality - Gasoline..............................186 Choosing the Right Fuel.................................. 186
Fuel Shutoff...................................................326
Fuel Tank Capacity - Diesel.....................457
Fuel Tank Capacity - Gasoline...............458
Fuses
................................................................339
Fuse Specification Chart..........................339 Engine Compartment Fuse Box................... 339
Passenger Compartment Fuse Panel.................................................................. 343
G
Garage Door Opener
...................................164
Garage Door Opener See: Universal Garage Door Opener...........164
Gauges ..............................................................
102
DEF Gauge............................................................ 104
Engine Coolant Temperature Gauge..........104
Engine Oil Pressure Gauge............................. 104
Fuel Gauge............................................................ 104
Transmission Fluid Temperature Gauge................................................................. 104
Turbo Boost Gauge............................................ 104
Type 1 and 2.......................................................... 102
Type 3..................................................................... 103
Gearbox See: Transmission.............................................. 207
General Information on Radio Frequencies...................................................55
Intelligent Access................................................. 55
General Maintenance Information.......565 Multi-Point Inspection..................................... 568
Owner Checks and Services......................... 566
Protecting Your Investment........................... 565
653
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index