octane FORD FOCUS 2008 2.G Owners Manual

Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based additives. Studies indicate that
these additives can cause your vehicle’s emission control system to
deteriorate more rapidly.
Repairs to correct the effects of using a fuel for which your vehicle was
not designed may not be covered by your warranty.
Octane recommendations
Your vehicle is designed to use
“Regular” unleaded gasoline with
pump (R+M)/2 octane rating of 87.
We do not recommend the use of
gasolines labeled as “Regular” that
are sold with octane ratings of 86 or lower in high altitude areas.
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. “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.
87(R+M)/2 METHOD
2008 Focus(foc)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
231

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.
2008 Focus(foc)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
233

ENGINE DATA
Engine 2.0L I4 engine
Cubic inches 121
Required fuel 87 octane
Firing order 1–3–4–2
Ignition system C.O.P
Compression ratio 10.0 :1
Spark plug gap .051 inch +/- .002
1.3 mm +/- .05
Engine drivebelt routing
•2.0L I4 Engine without A/C
•2.0L I4 Engine with A/C
2008 Focus(foc)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
246

Fan, Engine Cooling .........212, 215
Floor mats ...................................61
Fluid capacities .........................244
Foglamps .....................................35
Fuel ............................................227
calculating fuel
economy ............................56, 232
cap ...........................................229
capacity ...................................244
choosing the right fuel ...........230
comparisons with EPA
fuel economy estimates .........235
detergent in fuel .....................232
filling your vehicle
with fuel ..................227, 229, 232
filter, specifications ........227, 243
fuel pump shut-off switch .....168
improving fuel economy ........232
octane rating ...................231, 246
quality ......................................231
running out of fuel .................232
safety information relating
to automotive fuels ................227
Fuel pump shut-off switch .......168
Fuses ..........................................169
G
Gas cap (see Fuel cap) ............229
Gas mileage
(see Fuel economy) .................232
Gauges .........................................15
H
Hazard flashers .........................168
Head restraints ...........................75
Headlamps ...................................35
aiming ........................................37bulb specifications ....................39
daytime running lights .............36
flash to pass ..............................36
high beam .................................35
replacing bulbs .........................40
turning on and off ....................35
Heating
heating and air conditioning
system .......................................32
Hood ..........................................213
I
Ignition ...............................150, 246
Infant seats
(see Safety seats) .....................115
Inspection/maintenance
(I/M) testing ..............................237
Instrument panel
cleaning ...................................209
cluster ........................................10
lighting up panel and
interior .......................................36
J
Jump-starting your vehicle ......190
K
Keyless entry system
autolock .....................................62
Keys .............................................72
positions of the ignition .........150
L
Lamps
bulb replacement
specifications chart ..................39
2008 Focus(foc)
Owners Guide (post-2002-fmt)
USA(fus)
Index
253

daytime running light ...............36
fog lamps ...................................35
headlamps .................................35
headlamps, flash to pass ..........36
instrument panel, dimming .....36
interior lamps .....................38, 40
replacing bulbs .........................40
Lane change indicator
(see Turn signal) ........................38
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........156
Load limits .................................144
Locks
autolock .....................................62
childproof ..................................65
doors ..........................................62
Lubricant specifications ...........244
Lug nuts ....................................189
M
Manual transaxle
lubricant specifications ..........244
Manual transmission .................163
fluid capacities ........................244
reverse .....................................164
Message center ...........................55
english/metric button ...............58
system check button ................58
warning messages .....................59
Mirrors ...................................47–48
automatic dimming
rearview mirror .........................48
heated ........................................49
side view mirrors (power) .......48
Moon roof ....................................53
Motorcraft parts ........211, 227, 243
O
Octane rating ............................231Oil (see Engine oil) ..................217
P
Parking brake ............................156
Parts (see Motorcraft parts) ....243
Passenger Occupant
Classification Sensor ...................83
Power distribution box
(see Fuses) ...............................172
Power door locks ........................62
Power mirrors .............................48
Power point .................................45
Power steering ..........................158
fluid, checking and adding ....238
fluid, refill capacity ................244
fluid, specifications .................244
Power Windows ...........................46
R
Radio ............................................17
Relays ........................................169
Remote entry system .................67
locking/unlocking
doors ..............................62, 67–68
opening the trunk .....................69
panic alarm ...............................69
replacement/additional
transmitters ...............................70
replacing the batteries .............69
Roadside assistance ..................166
S
Safety Belt Maintenance ............91
Safety belts (see
Safety restraints) ............82, 85–90
2008 Focus(foc)
Owners Guide (post-2002-fmt)
USA(fus)
Index
254