octane FORD MUSTANG 2008 5.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 05+ Mustang(197)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
254

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 05+ Mustang(197)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
256

ENGINE DATA
Engine 4.0L V6 engine 4.6L V8 engine
Cubic inches 245 281
Required fuel 87 octane 87 octane
Firing order 1-4-2-5-3-6 1-3-7-2-6-5-4-8
Ignition system EDIS Coil on plug
Spark plug gap 0.052–0.056 inch
(1.32–1.42 mm)0.040–0.050 inch
(1.02–1.27 mm)
1
Compression ratio 9.7:1 9.8:1
1The spark plug gap is not adjustable on the 4.6L V8.
Engine drivebelt routing
•4.0L V6 Engine
•4.6L V8 Engine
2008 05+ Mustang(197)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
270

F
Fail safe cooling ........................249
Floor mats ...................................78
Fluid capacities .........................267
Foglamps .....................................46
Fuel ............................................250
calculating fuel
economy ............................74, 255
cap ...........................................252
capacity ...................................267
choosing the right fuel ...........253
comparisons with EPA fuel
economy estimates .................258
detergent in fuel .....................255
filling your vehicle with
fuel ...........................250, 252, 255
filter, specifications ........250, 266
fuel pump shut-off switch .....188
improving fuel economy ........255
octane rating ...................254, 270
quality ......................................254
running out of fuel .................255
safety information relating to
automotive fuels .....................250
Fuel pump shut-off switch .......188
Fuses ..................................189–190
G
Gas cap (see Fuel cap) ............252
Gas mileage
(see Fuel economy) .................255
Gauges .........................................15
H
Hazard flashers .........................188
Head restraints ...........................94Headlamps ...................................46
aiming ........................................48
bulb specifications ....................50
daytime running lights .............47
flash to pass ..............................47
high beam .................................46
replacing bulbs .........................51
turning on and off ....................46
Heating
heating and air conditioning
system .......................................42
Hood ..........................................233
How to get going ........................19
I
Ignition ...............................169, 270
Infant seats
(see Safety seats) .....................130
Inspection/maintenance (I/M)
testing ........................................260
Instrument panel
cleaning ...................................228
cluster ........................................10
lighting up panel and
interior .......................................47
J
Jump-starting your vehicle ......210
K
Keyless entry system
autolock .....................................81
Keys .............................................90
positions of the ignition .........169
2008 05+ Mustang(197)
Owners Guide (post-2002-fmt)
USA(fus)
Index
277

L
Lamps
bulb replacement
specifications chart ..................50
daytime running light ...............47
fog lamps ...................................46
headlamps .................................46
headlamps, flash to pass ..........47
instrument panel, dimming .....47
interior lamps .....................49, 51
replacing bulbs .........................51
Lane change indicator
(see Turn signal) ........................49
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........175
Limited slip axle
(see Traction Loc) ....................178
Load limits .................................160
Locks ............................................79
autolock .....................................81
doors ..........................................79
Lubricant specifications ...........267
Lug nuts ....................................209
Lumbar support, seats ...............96
M
Manual transmission .................183
fluid capacities ........................267
lubricant specifications ..........267
reverse .....................................184
Message center ...........................70
display color ..............................72
english/metric button .........72–73
MyColor display ........................72
system check button ................71
warning messages .....................76Mirrors ...................................62, 64
automatic dimming rearview
mirror ........................................62
side view mirrors (power) .......64
Motorcraft parts ........231, 250, 266
N
Navigation system .......................41
O
Octane rating ............................254
Oil (see Engine oil) ..................237
P
Parking brake ............................176
Parts (see Motorcraft parts) ....266
Passenger Occupant
Classification Sensor .................102
Power distribution box
(see Fuses) ...............................191
Power door locks ........................81
Power mirrors .............................64
Power point .................................58
Power steering ..........................178
fluid, checking and adding ....261
fluid, refill capacity ................267
fluid, specifications .................267
Power Windows ...........................59
R
Radio ................................19, 23, 27
Relays ........................................189
Remote entry system ...........83–84
illuminated entry ......................87
2008 05+ Mustang(197)
Owners Guide (post-2002-fmt)
USA(fus)
Index
278