2010 FORD SUPER DUTY octane

Octane recommendations
Your vehicle is designed to use
“Regular” unleaded gasoline with a
pump (R+M)/2 octane rating of 87.
Some stations offer fuels posted as
“Regular” with an octane rating
below 87, particularly in high altitude areas. Fuels with octane levels
below 87 are not recommended.
Do not be concerned if your engine sometimes knocks lightly. However, if
it knocks heavily under most driving conditions while you are using fuel
with the recommended octane rating, see your authorized dealer to
prevent any engine damage.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems, try a different brand of unleaded gasoline. If the problems
persist, see your authorized dealer.
Do not add aftermarket fuel additive products to your fuel tank. It
should not be necessary to add any aftermarket products to your fuel
tank if you continue to use high quality fuel of the recommended octane
rating. These products have not been approved for your engine and
could cause damage to the fuel system. Repairs to correct the effects of
using an aftermarket product in your fuel may not be covered by your
warranty.
Many of the world’s automakers approved the World-Wide Fuel Charter
that recommends gasoline specifications to provide improved
performance and emission control system protection for your vehicle.
Gasolines that meet the World-Wide Fuel Charter should be used when
available. Ask your fuel supplier about gasolines that meet the
World-Wide Fuel Charter.
Cleaner air
Ford endorses the use of reformulated “cleaner-burning” gasolines to
improve air quality, per the recommendations in theChoosing the right
fuelsection.
87(R+M)/2 METHOD
Maintenance and Specifications
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For consistent results when filling the fuel tank:
•Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
•Use the same filling rate setting (low — medium — high) each time
the tank is filled.
•Allow no more than two automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading
(in miles or kilometers).
2. Each time you fill the tank, record the amount of fuel added (in
gallons or liters).
3. After at least three to five 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. Follow one of the simple calculations in order to determine fuel
economy:
Calculation 1:Divide total miles traveled by total gallons used.
Calculation 2:Multiply liters used by 100, then divide by total
kilometers traveled.
Keep a record for at least one month and record the type of driving (city
or highway). This will provide an accurate estimate of the vehicle’s fuel
economy under current driving conditions. Additionally, keeping records
during summer and winter will show how temperature impacts fuel
economy. In general, lower temperatures give lower fuel economy.
Driving style — good driving and fuel economy habits
Give consideration to the lists that follow and you may be able to change
a number of variables and improve your fuel economy.
Maintenance and Specifications
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USA(fus)

ENGINE DATA
Engine 5.4L V8 engine 6.8L V10 engine
Cubic inches 330 415
Required fuel 87 octane 87 octane
Firing order 1-3-7-2-6-5-4-8 1-6-5-10-2-7-3-8-4-9
Spark plug gap1.0–1.1mm
(0.039–0.043 inch)1.0–1.1mm
(0.039–0.043 inch)
Ignition system Coil on plug Coil on plug
Compression ratio 9.8:1 9.2:1
Drivebelt routing
5.4L V8/6.8L V10 engines
Maintenance and Specifications
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USA(fus)

refill capacities ........................390
Event data recording ....................8
Exhaust fumes ..........................266
F
Fail safe cooling ........................368
Family entertainment system ....68
Fluid capacities .........................390
Fog lamps ..................................107
Four-Wheel Drive vehicles .......284
description ..............................289
driving off road .......................291
electronic shift ................285, 289
indicator light .........................286
lever operated shift ................286
manual locking hubs ..............284
preparing to drive your
vehicle .....................................273
Fuel ............................................370
calculating fuel
economy ......................26, 35, 375
cap ...........................................372
capacity ...................................390
choosing the right fuel ...........373
comparisons with EPA fuel
economy estimates .................378
detergent in fuel .....................374
filling your vehicle with
fuel ...........................370, 372, 375
filter, specifications ........370, 389
fuel pump shut-off switch .....304
improving fuel economy ........375
octane rating ...................374, 394
quality ......................................374
running out of fuel .................375
safety information relating to
automotive fuels .....................370
Fuel pump shut-off switch .......304
Fuses ..................................305–306G
Gas cap (see Fuel cap) ............372
Gas mileage
(see Fuel economy) .................375
Gauges .........................................21
transmission fluid
temperature gauge ...................25
H
Hazard flashers .........................303
Head restraints .................163, 169
Headlamps .................................107
aiming ..............................109, 111
autolamp system .....................107
daytime running lights ...........108
flash to pass ............................108
high beam ...............................108
replacing bulbs ...............115–117
turning on and off ..................107
Heating
heater only system ...................98
heating and air conditioning
system ...............................99, 102
Homelink wireless control
system ........................................139
Hood ..........................................355
I
Ignition ...............................263, 394
Illuminated visor mirror ...........121
Infant seats
(see Safety seats) .....................198
Inspection/maintenance (I/M)
testing ........................................380
Index
404
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USA(fus)

Instrument panel
cleaning ...........................348–349
cluster ........................................14
lighting up panel and
interior .....................................109
J
Jump-starting your vehicle ......330
K
Keyless entry system
autolock ...................................149
keypad .....................................157
locking and unlocking doors ..159
programming entry code .......157
Keys ...................................160–161
positions of the ignition .........263
L
Lamps
autolamp system .....................107
daytime running light .............108
fog lamps .................................107
headlamps ...............................107
headlamps, flash to pass ........108
instrument panel, dimming ...109
interior lamps .........................113
replacing bulbs ...............115–119
LATCH anchors .........................206
Lights, warning and indicator ....14
anti-lock brakes (ABS) ..........268
Limited-slip axle .......................272
Load limits .................................243
Loading instructions .................250
Locks
autolock ...................................149
childproof ................................152doors ........................................148
Lug nuts ....................................329
Lumbar support, seats .....167–168
M
Manual transmission .................278
fluid capacities ........................390
reverse .....................................279
Message center .....................25, 33
english/metric button .........28, 37
system check button ................37
warning messages ...............28, 38
Mirrors ...............................126–127
automatic dimming rearview
mirror ......................................126
fold away .........................128–130
side view mirrors (power) .....127
signal .......................................130
Moon roof ..................................138
Motorcraft
parts ..............370, 389
N
Navigation system .......................97
O
Octane rating ............................374
Oil (see Engine oil) ..................359
P
Parking brake ............................269
Parts
(see Motorcraft
parts) ...........389
Pedals (see Power adjustable
foot pedals) ...............................131
Power adjustable foot pedals ...131
Index
405
2010 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)