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Octane Recommendations - Gasoline Engines
Regular unleaded gasoline with a
pump (R+M)/2 octane rating of 87 is
recommended. Some stations offer
fuels posted as Regular with an
octane rating below 87, particularly in
high altitude areas. Do not use fuels with a posted octane rating below 87.
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.
RUNNING OUT OF FUEL
Gasoline Engine
Avoid running out of fuel because this situation may have an adverse
effect on powertrain components.
If you have run out of fuel:
•You may need to cycle the ignition from off to on several times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, cranking time takes a few seconds longer
than normal.
•If your vehicle is equipped with dual fuel tanks,adding
four–five gallons (15–19 liters) of fuel is enough to restart the
engine. If the vehicle is out of fuel and on a steep grade, more than
four–five gallons (15–19 liters) may be required.
•The service engine soon indicator may come on. For more
information on the service engine soon indicator, see theInstrument
Clusterchapter.
SeeGeneral informationin theInformation Displayschapter for
information on Miles to Empty.
Diesel Engine
Avoid running out of fuel as this allows air to enter the fuel system,
which makes restarting the vehicle difficult.
If you have run out of fuel:
•If your vehicle is equipped with dual fuel tanks,adding
four–five gallons (15–19 liters) of fuel is enough to restart the
engine. If the vehicle is out of fuel and on a steep grade, more than
four–five gallons (15–19 liters) may be required.
87(R+M)/2 METHOD
11 6Fuel and Refueling
2013 F-650/750(f67)
Owners Guide gf, 2nd Printing, March 2013
USA(fus)
Page 264 of 378
ENGINE SPECIFICATIONS (GASOLINE ENGINE ONLY)
Engine 6.8L V10 engine
Cubic inches 413
Required fuel Minimum 87 octane
Firing order 1-6-5-10-2-7-3-8-4-9
Spark plug gap 0.039–0.043 inch (1.0–1.1 mm)
Ignition system Coil on plug
Compression ratio 9.2:1
Engine Drivebelt Routing
6.8L V10 engine with A/C
6.8L V10 engine - without A/C
Capacities and Specifications263
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USA(fus)
Page 375 of 378

Exhaust fumes ..........................104
F
Fail safe cooling ........................222
Fan, Engine Cooling .................219
Filter
fuel ...........................................232
Fuel
cap ...........................................118
capacity ...................................277
filler funnel .............................116
filling your vehicle with fuel ..118
octane rating ...................116, 263
quality ......................................114
running out of fuel .................116
safety information relating to
automotive fuels .....................113
Fuses ..........................194–195, 203
G
Gas cap (see Fuel cap) ............118
Gauges ...................................64, 66
H
Hazard flashers .........................185
Headlamps ...................................56
aiming ......................................239
bulb specifications ..................241
daytime running lights .............57
flash to pass ..............................56
replacing bulbs .......................239
turning on and off ....................56
Head restraints ...........................92
Heating ........................................88
Hood ..........................................215I
Ignition ...............................103, 263
Information displays ...................74
Instrument panel
cleaning ...................................247
cluster ........................................68
lighting up panel and
interior .......................................57
J
Joining two calls
(multiparty/conference call) ....328
Jump-starting your vehicle ......185
K
Keys
positions of the ignition .........103
L
Lamps ..........................................56
bulb replacement
specifications chart ................241
daytime running light ...............57
headlamps .................................56
headlamps, flash to pass ..........56
instrument panel, dimming .....57
interior lamps .....................58–59
replacing bulbs .......................239
Lane change indicator
(see Turn signal) ........................58
LATCH anchors ...........................36
Lights, warning and indicator ....68
Load limits .................................174
Locks
childproof ..................................40
doors ..........................................53
374Index
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USA(fus)
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Lubricant specifications ...........264
Lumbar support, seats ...............95
M
Manual transmission .................132
lubricant specifications ..........264
Media Bluetooth menu options
(adding, connecting, deleting,
turning on/off) ..........................356
Message center ...........................74
warning messages .....................76
Mirrors .........................................60
fold away .............................62–63
side view mirrors (power) .......61
Motorcraft® parts .............242, 280
O
Octane rating ............................116
P
Pairing other phones ................325
Pairing your phone for the first
time ............................................324
Parking brake ....................158, 161
Parts
(see Motorcraft® parts) ..........280
Phone Bluetooth menu options
(adding, connecting, deleting,
turning on/off) ..........................335
Phone redial ..............................329
Playing music (by artist,
album, genre, playlist, tracks,
similar) ......................................353
Power distribution box
(see Fuses) ...............................195Power door locks ........................53
Power mirrors .............................61
Powerpoint ................................101
Power steering ..................170, 212
fluid, checking and adding ....231
fluid, refill capacity ................277
fluid, specifications .................264
Power Windows ...........................59
Privacy information ..................321
Putting a call on/off hold .........328
R
Radio ......................................79–80
Single CD ............................79–80
Radio reception ...........................77
Rear window defroster ...............88
Receiving a text message .........331
Recommendations for
attaching safety restraints for
children ........................................33
Relays ........................194–195, 199
Remote entry system
locking/unlocking doors ...........52
Roadside assistance ..................184
S
Safety Belt Maintenance ............51
Safety belts (see Safety
restraints) ..............................42, 47
Safety defects, reporting ..........193
Safety information ....................320
Safety restraints ..............42–45, 47
Belt-Minder® ............................48
extension assembly ..................47
Index375
2013 F-650/750(f67)
Owners Guide gf, 2nd Printing, March 2013
USA(fus)