deteriorate more rapidly. In Canada, premium grade fuel generally
contains more metallic additives than regular fuel. We recommend using
regular grade fuel. In Canada, many fuels contain metallic additives, but
fuels free of such additives may be available; check with your local fuel
dealer.
Do not use fuel containing methanol. It can damage critical fuel system
components.
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
“Premium ”unleaded gasoline with
an (R+M)/2 octane rating of 91 or
higher for optimum performance.
The use of gasolines with lower
octane ratings may degrade performance. The use of gasolines labeled as
“ Premium ”in high altitude areas that are sold with octane ratings of less
than 91 is 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 dealer or a qualified
service technician 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 dealer or a
qualified service technician.
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. Aftermarket products 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.
91(R+M)/2 METHOD
2005 GT(gto)
Owners Guide (post-2002-fmt)
USA_English (fus)
Maintenance and Specifications
159
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 2 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.
2005 GT(gto)
Owners Guide (post-2002-fmt)
USA_English (fus)
Maintenance and Specifications
161
ENGINE DATA
Engine 5.4L DOHC Supercharged V8engine
Displacement (cubic inches) 330
Required fuel 91 octane
Firing order 1-3-7-2-6-5-4-8
Spark plug gap 1.1 –1.2mm (0.042 –0.046 inch)
Ignition system Coil on plug
Compression ratio 8.4:1
VEHICLE DIMENSIONS
Vehicle dimensions Inches (mm)
(1) Overall length 182.8 (4644)
(2) Overall width 76.9 (1952.5)
(3) Overall height 44.3 (1124.8)
(4) Wheelbase 106.7 (2709.9)
(5) Tread - Front 63.0 (1599.4)
(5) Tread - Rear 63.6 (1617.6)
2005 GT(gto)
Owners Guide (post-2002-fmt)
USA_English (fus)
Maintenance and Specifications
171
Customer Assistance ................105Ford accessories for your
vehicle .....................................138
Ford Extended Service
Plan ..........................................125
Getting assistance outside
the U.S. and Canada ..............129
Getting roadside assistance ...105
Getting the service you
need .........................................123
Ordering additional owner ’s
literature .................................130
The Dispute Settlement
Board .......................................126
Utilizing the
Mediation/Arbitration
Program ...................................128
D
Dipstick engine oil .................................147
Doors lubricant specifications ..........170
Driving under special
conditions through water .........................103
E
Emergencies, roadside jump-starting ..........................115
Emergency Flashers .................106
Emission control system ..........163
Engine ........................................171 cleaning ...................................134
coolant .....................................152
idle speed control ...................150
lubrication
specifications ..................170 –171
refill capacities ........................169 service points ..........................144
starting after a collision .........106
Engine compartment -
opening ......................................140
Engine oil ..................................147 checking and adding ..............147
dipstick ....................................147
filter, specifications ........149, 168
recommendations ...................149
refill capacities ........................169
specifications ..................170 –171
Exhaust fumes ............................98
F
Fluid capacities .........................169
Foglamps .....................................21
Four-Wheel Drive vehicles preparing to drive your
vehicle .....................................101
Fuel ............................................156 calculating fuel economy .......160
cap ...........................................158
capacity ...................................169
choosing the right fuel ...........158
comparisons with EPA fuel
economy estimates .................163
detergent in fuel .....................160
filling your vehicle with
fuel ...........................156, 158, 160
filter, specifications ........160, 168
fuel pump shut-off switch .....106
improving fuel economy ........160
octane rating ...................159, 171
quality ......................................159
running out of fuel .................160
safety information relating to
automotive fuels .....................156
Fuel pump shut-off switch .......106
Fuses ..................................107 –108
2005 GT(gto)
Owners Guide (post-2002-fmt)
USA_English (fus)
Index
193
O
Octane rating ............................159
Oil (see Engine oil) ..................147
P
Parking brake ............................100
Parts (see Motorcraft parts) ....168
Power distribution box
(see Fuses) ...............................111
Power mirrors .............................26
Power point .................................25
Power steering ..........................101fluid, checking and adding ....165
fluid, refill capacity ................169
fluid, specifications .........170 –171
Power Windows ...........................26
Preparing to drive your
vehicle ........................................101
R
Radio ............................................15
Relays ........................................107
Remote entry system .................29 locking/unlocking doors ...........28
opening the trunk .....................31
Roadside assistance ..................105
S
Safety Belt Maintenance ............47
Safety belts
(see Safety restraints) .........39 –42
Safety defects, reporting ..........131 Safety restraints ....................39
–43
extension assembly ..................47
for adults .............................40 –42
for children .........................55 –56
safety belt maintenance ...........47
warning light and chime ..........43
Safety seats for children ............58
Scheduled Maintenance
Guide .........................................177 Coolant Change Record .........190
General Maintenance
Information .............................177
Normal Scheduled
Maintenance and Log .....180 –181
What Maintenance Schedule
Should You Follow? ................179
Seat belts
(see Safety restraints) ...............39
Seats ............................................38 child safety seats ......................58
cleaning ...................................137
front seats .................................38
Servicing your vehicle ..............139
Setting the clock AM/FM/CD .................................16
Spark plugs, specifications ......168, 171
Special notice ............................104
Specification chart,
lubricants ...........................170 –171
Starting your vehicle ......95 –96, 98
jump starting ..........................115
Steering wheel tilting .........................................25
2005 GT(gto)
Owners Guide (post-2002-fmt)
USA_English (fus)
Index
195