octane FORD FUSION 2010 Owners Manual

sensitive individuals, serious personal injury or sickness may result. If
fuel is splashed on the skin, promptly wash skin thoroughly with soap
and water. Consult a physician immediately if you experience an
adverse reaction.
•FFV fuel tanks may contain zero to 85% ethanol. Any fuel blends
containing gasoline and ethanol should be treated the same as “Fuel
Ethanol.” Flex fuel vehicles have a yellow bezel placed over the fuel
fill inlet.
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.
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.
WARNING:Flexible fuel components and standard unleaded
gasoline fuel components are not interchangeable. If your vehicle
is not serviced in accordance with flexible fuel vehicles procedures,
damage may occur and your warranty may be invalidated.
WARNING:When refueling always shut the engine off and
never allow sparks or open flames near the filler neck. Never
smoke while refueling. Fuel vapor is extremely hazardous under certain
conditions. Care should be taken to avoid inhaling excess fumes.
Maintenance and Specifications
297
2010 Fusion(fsn)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com

Flex fuel vehicle (FFV) fuel fill inlet
If your vehicle is flex fuel capable, it will have a yellow bezel placed over
the fuel fill inlet.
Choosing the right fuel
If your vehicle is a flexible fuel vehicle (FFV), use only UNLEADED
FUEL and FUEL ETHANOL (Ed75–Ed85).
If your vehicle is not a flexible fuel vehicle (FFV), then only use
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
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.
87(R+M)/2 METHOD
Maintenance and Specifications
300
2010 Fusion(fsn)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com

FFV engine (if equipped)
If your vehicle is flex fuel capable, it is designed to use Fuel Ethanol
(Ed75–Ed85), “Regular” unleaded gasoline or any mixture of the two
fuels.
Use of other fuels such as Fuel Methanol may cause powertrain
damage, a loss of vehicle performance, and your warranty may be
invalidated.
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 (18.9L)
when refueling. You should drive the vehicle immediately after refueling
for at least 5 miles (8 km) 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.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems during a cold start, try a different brand of “Regular” unleaded
gasoline. Premium unleaded gasoline is not recommended for vehicles
designed to use “Regular” unleaded gasoline because it may cause these
problems to become more pronounced. 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.
FFV engine (if equipped)
Flex fuel vehicles have a yellow bezel around the fuel fill inlet.
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
Maintenance and Specifications
301
2010 Fusion(fsn)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com

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.
•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.
Maintenance and Specifications
304
2010 Fusion(fsn)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com

ENGINE DATA
Engine 2.5L I4 engine 3.0L V6 engine 3.5L V6 engine
Cubic inches 151 182 214
Required fuel 87 octane 87 octane 87 octane
Firing order 1-3-4-2 1-4-2-5-3-6 1-4-2-5-3-6
Ignition system Coil on plug Coil on plug Coil on plug
Spark plug gap0.049–0.053 inch
(1.25–1.35 mm)0.045–0.049 inch
(1.15–1.25 mm)0.051–0.057 inch
(1.32–1.42 mm)
Compression
ratio9.7:1 10.3:1 10.3:1
Engine drivebelt routing
•2.5L I4 Engine
•3.0L V6 Engine
Maintenance and Specifications
325
2010 Fusion(fsn)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com

E
Electronic message center .........18
Emergencies, roadside
jump-starting ..........................253
running out of fuel .........252, 302
Emission control system ..........306
Engine ........................................325
cleaning ...................................269
coolant .....................................289
fail-safe cooling .......................294
idle speed control ...................287
lubrication specifications .......321
refill capacities ........................321
service points ..................277–279
starting after a collision .........238
Engine block heater .................201
Engine oil ..................................281
change oil soon warning,
message center .......................281
checking and adding ..............281
dipstick ....................................281
filter, specifications ........286, 320
recommendations ...................286
refill capacities ........................321
specifications ..........................321
Event data recording ....................7
Exhaust fumes ..........................201
F
Fail safe cooling ........................294
Flexible Fuel Vehicle (FFV) ....295
Fluid capacities .........................321
Fog lamps ....................................56
Four-Wheel Drive vehicles
driving off road .......................229
Fuel ............................................295calculating fuel
economy ............................20, 303
cap ...........................................298
capacity ...................................321
choosing the right fuel ...........300
comparisons with EPA fuel
economy estimates .................306
detergent in fuel .....................302
filler funnel .............................302
filling your vehicle
with fuel ..................295, 298, 303
filter, specifications ........295, 320
fuel pump shut-off ..................238
fuel pump shut-off switch .....238
improving fuel economy ........303
octane rating ...........300–301, 325
quality ......................................301
running out of fuel .........252, 302
safety information relating to
automotive fuels .....................295
Fuel - flex fuel vehicle
(FFV) .........................295, 300–301
Fuel pump shut-off switch .......238
Fuses ..................................239–240
G
Gas cap (see Fuel cap) ............298
Gas mileage (see Fuel
economy) ...................................303
Gauges .........................................16
H
Hazard flashers .........................237
Headlamps ...................................55
aiming ........................................58
autolamp system .......................55
bulb specifications ....................61
daytime running lights .............56
Index
336
2010 Fusion(fsn)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com

Mirrors ...................................80–81
automatic dimming rearview
mirror ........................................80
heated ........................................81
side view mirrors (power) .......81
Moon roof ....................................85
Motorcraftparts ..............274, 320
N
Navigation system .......................44
O
Octane rating ....................300–301
Oil (see Engine oil) ..................281
P
Parking brake ............................204
Parts (see Motorcraft
parts) .........................................320
Passenger Occupant
Classification Sensor .................121
Power distribution box (see
Fuses) ........................................242
Power door locks ........................89
Power mirrors .............................81
Power point .................................77
Power steering ..................209–210
fluid, checking and adding ....309
fluid, refill capacity ................321
fluid, specifications .................321
Power Windows ...........................78
R
Radio ............................................28Rear-view camera system .........221
Recommendations for
attaching safety restraints for
children ......................................152
Relays ........................................239
Remote entry system .................95
illuminated entry ................97, 99
locking/unlocking doors .....95–96
opening the trunk .....................96
panic alarm ...............................96
replacement/additional
transmitters ...............................97
replacing the batteries .............97
Reverse sensing system ...........219
Roadside assistance ..................236
S
Safety belts (see Safety
restraints) ..........120, 123, 125–127
Safety Canopy ...........................143
Safety defects, reporting ..........266
Safety restraints ...............120, 123,
125–127
Belt-Minder...........................129
extension assembly ................128
for adults .........................125–127
for children .............................149
Occupant Classification
Sensor ......................................121
warning light and chime ........128
Safety restraints - LATCH
anchors ......................................160
Safety seats for children ..........154
Safety Compliance
Certification Label ....................326
Satellite Radio .............................28
Satellite Radio Information ........41
Index
338
2010 Fusion(fsn)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com