2013 FORD F250 octane

Pure ethanol is the alcohol which is the intoxicating agent in liquor, beer
and wine. It is distilled from the fermentation of plants such as field
corn and sugar cane. When ethanol is produced for use in motor fuels,
a small amount of gasoline is added to make it unfit for beverage use.
The resulting ethanol blend is called denatured fuel ethanol meaning that it
is denatured with 2% to 5% gasoline and is suitable for automotive use.
During the summer season, fuel ethanol may contain a maximum of 85%
denatured ethanol (Ed85) and 15% unleaded gasoline. The fuel ethanol
has a higher octane rating than unleaded regular or premium gasoline
and this allows the design of engines with greater efficiency and power.
Winter blends may contain up to 75% denatured ethanol (Ed75) and up
to 25% unleaded gasoline to enhance cold engine starts. Severely cold
weather may require additional measures for reliable starting. Refer to
the Starting chapter
Ethanol is more chemically active than gasoline. It corrodes some metals
and causes some plastic and rubber components to swell, break down or
become brittle and crack, especially when mixed with gasoline. Special
materials and procedures have been developed for flexible fuel vehicles
and the dispensers used by ethanol fuel providers.
FUEL QUALITY
Note:Use of any fuel other than those recommended may cause
powertrain damage and a loss of vehicle performance; repairs may not be
covered under warranty.
Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based additives.
Choosing the Right Fuel
Use only UNLEADED fuel or UNLEADED fuel blended with a maximum
of 15% ethanol. Do not use fuel ethanol (E85), diesel fuel, fuel-methanol,
leaded fuel or any other fuel because it could damage or impair the
emission control system.
Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based additives. The use of leaded fuel
is prohibited by law.
Diesel engine (if equipped)
Refer to the diesel supplement for information regarding diesel fuel
recommendations and requirements of your diesel-powered truck.
190Fuel and Refueling
2013 F-250/350/450/550(f23)
Owners Guide gf, 3rd Printing, December 2012
USA(fus)

Choosing the Right Fuel With a Flex Fuel Vehicle (If Equipped)
Note:
If your vehicle is FFV capable, it will have a yellow colored fuel cap.
Flex fuel vehicles are designed to use only ethanol fuel blends which
contains 51 to 83% ethanol and UNLEADED FUEL Regular unleaded
gasoline or any mixture of the two fuels.
It is best not to alternate repeatedly between gasoline and E85. If you do
switch fuels, it is recommended that you add as much fuel as possible—at
least half a tank. Do not add less than five gallons (18.9 liters) when
refueling. You should drive the vehicle immediately after refueling for at
least 5 miles (8 kilometers) to allow the vehicle to adapt to the change in
ethanol concentration. If you exclusively use E85 fuel, it is recommended
to fill the fuel tank with regular unleaded gasoline at each scheduled oil
change.
Octane Recommendations
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. Fuels with octane levels below 87 are not
recommended.
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. 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.
87(R+M)/2 METHOD
Fuel and Refueling191
2013 F-250/350/450/550(f23)
Owners Guide gf, 3rd Printing, December 2012
USA(fus)

ENGINE SPECIFICATIONS
Engine 6.2L V8 engine 6.8L V10 engine
Cubic inches 378 413
Required fuelMinimum 87 octane or
Ethanol (E85)Minimum 87 octane
Firing order 1-5–4–8–6–3–7–2 1-6-5-10-2-7-3-8-4-9
Spark plug gap0.041–0.047 inch
(1.04–1.20 mm)0.039–0.043 inch
(1.0–1.1 mm)
Ignition system Coil on plug Coil on plug
Compression ratio 9.8:1 9.2:1
Engine Drivebelt Routing
6.2L V8 engine
Capacities and Specifications389
2013 F-250/350/450/550(f23)
Owners Guide gf, 3rd Printing, December 2012
USA(fus)

D
Daytime running lamps
(see Lamps) ................................87
Defrost ...............................146, 148
rear window ............................152
Dipstick
automatic transmission
fluid ..........................................313
engine oil .........................304, 306
Display settings .........................521
Drivebelt ....................................389
Driving under special
conditions ..................207, 218, 220
sand .........................................218
snow and ice ...........................221
through water .................219, 270
Dual automatic temperature
control (DATC) .........................148
E
Electronic message center .......104
Electronic stability control ......228
Emergencies, roadside
jump-starting ..........................279
running out of fuel .................192
Emergency Flashers .................278
Emission control system ..........195
End user license agreement ....549
Engine ................................304, 389
cleaning ...................................334
coolant .....................................307
fail-safe cooling .......................310
refill capacities ........................391
service points ..................304–305
Engine block heater .................186Engine oil
checking and adding ..............306
dipstick ....................................306
filter, specifications ................395
refill capacities ........................391
Event data recording ..................12
Exhaust fumes ..........................185
F
Fail safe cooling ........................310
Filter
fuel ...........................................317
Fleet MyKey programming ........67
Flexible Fuel Vehicle (FFV) ....188
Floor mats .................................271
Fluid capacities .........................391
Fog lamps ....................................88
Four-Wheel Drive vehicles .......209
driving off road .......................216
electronic shift ................209, 213
indicator light .........................210
lever operated shift ................211
manual locking hubs ..............209
Fuel
cap ...........................................193
capacity ...................................391
choosing the right fuel ...190–191
filler funnel .............................192
filling your vehicle with
fuel ...........................................193
fuel pump shut-off ..................278
octane rating ...................191, 389
quality ......................................190
running out of fuel .................192
safety information relating to
automotive fuels .....................188
Index571
2013 F-250/350/450/550(f23)
Owners Guide gf, 3rd Printing, December 2012
USA(fus)

interior lamps ...........................89
replacing bulbs .......327, 329–330
Lane change indicator
(see Turn signal) ........................88
LATCH anchors ...........................31
Lights, warning and indicator ....99
Listening to music ....................478
Loading instructions .................247
Load limits .................................241
Locks
autolock .....................................73
childproof ..................................35
doors ..........................................72
Lug nuts ....................................387
Lumbar support, seats .............158
M
Making and receiving calls .......502
Manual transmission
fluid capacities ........................391
MAP DVD - Loading and
Unloading ..................................502
Map icons ..................................545
Map mode ..................................543
Map preferences .......................542
Map updates ..............................546
Media Bluetooth menu options
(adding, connecting, deleting,
turning on/off) ..........................458
Message center .................104–105
warning messages ...................119
Mirrors ...................................92, 94
fold away .............................93–94
programmable memory ............63
side view mirrors (power) .......92Moon roof ....................................96
Motorcraft® parts .............332, 395
MyFord Touch™ system ..........466
MyKey ..........................................67
N
Navigation features ...................537
Navigation voice commands ....547
Notifications ..............................515
O
Octane rating ............................191
P
Pairing other phones ........426, 502
Pairing your phone ...................501
Pairing your phone for
the first time .....................426, 501
Parental MyKey programming ...67
Parking brake ............................224
Parts
(see Motorcraft® parts) ..........395
Phone Bluetooth menu options
(adding, connecting, deleting,
turning on/off) ..........................437
Phone redial ..............................431
Phone settings ..................505, 528
Phone voice commands ............507
Playing music (by artist,
album, genre, playlist,
tracks, similar) ..........................455
POI categories ...........................539
Point of Interest (POI) .............539
Index573
2013 F-250/350/450/550(f23)
Owners Guide gf, 3rd Printing, December 2012
USA(fus)