2011 FORD FLEX octane

Choosing the right fuel
Use only UNLEADED fuel or UNLEADED fuel blended with a maximum
of 10% ethanol. Do not use fuel ethanol (E85), diesel, methanol, leaded
fuel or any other fuel. The use of leaded fuel is prohibited by law and
could damage your vehicle.
Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based additives.
Note:Use of any fuel other than those recommended may cause
powertrain damage, a loss of vehicle performance, and repairs may not
be covered under warranty.
Octane recommendations
3.5L V6 engine
Your vehicle will run normally on 87 octane regular fuel. Premium fuel
will provide improved performance.
3.5L V6 EcoBoost engine
Your vehicle is designed to run on regular fuel with an octane rating of
87 or higher. For best overall performance, premium fuel with an octane
rating of 91 or higher is recommended. The performance gained by using
premium fuel will be most noticeable in hot weather or in severe duty
applications such as towing a trailer.
Some stations offer fuels posted asRegularwith an octane rating below
87, particularly in high altitude areas. Fuels with octane levels below 87
are not recommended for either engine. Do not be concerned if your
engine sometimes knocks lightly. However, if it knocks heavily 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 during a cold start, 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
87(R+M)/2 METHOD
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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.
Running out of fuel
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. With keyless ignition, just start the engine. Crank time will
be longer than usual.
•Normally, adding 1 gallon (3.8L) of fuel is enough to restart the
engine. If the vehicle is out of fuel and on a steep grade, more than
1 gallon (3.8L) may be required.
•The service engine soon
indicator may come on. For more
information on the service engine soon indicator, refer toWarning
lights and chimesin theInstrument Clusterchapter.
Refilling with a portable fuel container
With the Easy Fuel™ “no cap” fuel system, use the following directions
when filling from a portable fuel container:
WARNING:Do not insert the nozzle of portable fuel containers
or aftermarket funnels into the Easy Fuel™ system. This could
damage the fuel system and its seal, and may cause fuel to run onto
the ground instead of filling the tank, which could result in serious
personal injury.
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ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1,000 miles
(1,600 km) of driving (engine break-in period). You will get a more
accurate measurement after 2,000 miles–3,000 miles (3,000 km–5,000
km).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theMaintenance
product specifications and capacitiessection of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
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.
•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).
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ENGINE DATA
Engine 3.5L V6 engine3.5L V6 EcoBoost™
engine
Cubic inches 214 214
FuelSeeOctane
recommendations
earlier in this chapter.SeeOctane
recommendationsearlier
in this chapter.
Firing order 1–4–2–5–3–6 1–4–2–5–3–6
Spark plug gap0.052–0.056 inch
(1.32–1.42 mm)0.033–0.037 inch (.84–
.94 mm)
Ignition system Coil on plug Coil on plug
Compression
ratio10.3:1 10.0:1
Engine drivebelt routing
3.5L V6 engine
1. Short drivebelt is on first pulley groove closest to engine (not
applicable to vehicles with electric power assisted steering).
2. Long drivebelt is on second pulley groove farthest from engine.
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cleaning ...................................328
coolant .....................................348
fail-safe cooling .......................354
idle speed control ...................346
lubrication specifications .......378
refill capacities ........................378
service points ..................338–339
Engine block heater .................253
Engine oil ..................................342
checking and adding ..............342
dipstick ....................................342
filter, specifications ................377
refill capacities ........................378
specifications ..........................378
Event data recording ....................6
Exhaust fumes ..........................253
F
Fail safe cooling ........................354
Family entertainment system ....47
Fleet MyKey programming ......119
Floor mats .................................112
Fluid capacities .........................378
Fog lamps ....................................82
Four-Wheel Drive vehicles
driving off road .......................282
Freezer ........................................97
Fuel ............................................355
calculating fuel
economy ............................20, 362
cap ...........................................357
capacity ...................................378
choosing the right fuel ...........359
detergent in fuel .....................360
filler funnel .............................360
filling your vehicle with
fuel ...........................355, 357, 362filter, specifications ........355, 377
fuel pump shut-off ..................289
improving fuel economy ........362
octane rating ...................359, 381
quality ......................................359
running out of fuel .........314, 360
safety information relating to
automotive fuels .....................355
Fuses ..........................................290
G
Garage door opener ..................108
Gas cap (see Fuel cap) ............357
Gas mileage
(see Fuel economy) .................362
Gauges .........................................16
H
Hazard flashers .........................289
Head restraints .................152, 154
Headlamps ...................................81
aiming ........................................84
autolamp system .......................81
bulb specifications ....................87
daytime running lights .............83
flash to pass ..............................83
high beam .................................82
replacing bulbs .........................88
turning on and off ....................81
Heating
heating and air conditioning
system ...........................68, 71, 74
Homelink wireless control
system ........................................108
Hood ..........................................337
I
Ignition ...............................250, 381
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Illuminated visor mirror .............93
Infant seats
(see Safety seats) .....................199
Inspection/maintenance (I/M)
testing ........................................367
Instrument panel
cleaning ...................................331
cluster ........................................12
lighting up panel and
interior .......................................83
J
Jack ............................................298
positioning ...............................298
storage .....................................298
Jump-starting your vehicle ......315
K
Keyless entry system
autolock ...................................124
keypad .....................................135
locking and unlocking doors ..136
programming entry code .......135
Keys ...................................118, 138
positions of the ignition .........250
L
Lamps
autolamp system .......................81
bulb replacement
specifications chart ..................87
daytime running light ...............83
fog lamps ...................................82
headlamps .................................81
headlamps, flash to pass ..........83
instrument panel, dimming .....83
interior lamps .....................85, 88
replacing bulbs .........................88LATCH anchors .........................203
Liftgate ......................112–113, 131
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........256
Load limits .................................237
Locks
autolock ...................................124
childproof ................................128
doors ........................................124
Lubricant specifications ...........378
Lug nuts ....................................313
Lumbar support, seats .....147, 149
M
Message center ...........................18
english/metric button ...............22
system check button ................22
warning messages .....................22
Mirrors ...............................102–103
automatic dimming rearview
mirror ......................................102
heated ................................74, 103
programmable memory ..........132
side view mirrors (power) .....103
Moon roof ..................................107
Motorcraftparts ..............335, 377
MyKey ........................................119
N
Navigation system .......................67
O
Octane rating ............................359
Oil (see Engine oil) ..................342
Overdrive ...................................266
Index
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