2003 FORD TAURUS octane

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 used in the making of motor fuels, a
small amount of a bad tasting chemical is added to discourage beverage
use. The resulting fuel is called E
d100 meaning 100% pure ethanol
diluted by 2% to 5% gasoline as the“denaturant.”
Fuel ethanol (summer blend
d) is then made by adding 15% more
unleaded gasoline. The resulting fuel also has a higher octane rating than
unleaded regular gasoline and other properties which allow engine
designs with greater efficiency and power.
Winter blends may contain up to 30% (E70)unleaded gasoline (25% plus
the denaturant) to enhance cold engine starts. Severely cold weather
may require additional measures for reliable starting. Refer toCold
Weather Startingin theDrivingchapter.
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.
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.
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.
The flow of fuel through a fuel pump nozzle can produce static
electricity, which can cause a fire if fuel is pumped into an
ungrounded fuel container.
Use the following guidelines to avoid static build-up when filling an
ungrounded fuel container:
•Place approved fuel container on the ground.
•DO NOT fill a fuel container while it is in the vehicle (including the
cargo area).
Maintenance and Specifications
182

Choosing the right fuel
Use only UNLEADED FUEL. The use of leaded fuel is prohibited by law
and could damage your vehicle.
If your vehicle is a flexible fuel vehicle (FFV), use only UNLEADED
FUEL and (E85) ETHANOL. The use of leaded fuel is prohibited by law
and could damage your vehicle.
Do not use fuel containing methanol. It can damage critical fuel system
components.
Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based compounds containing MMT.
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
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.
Unleaded Gasoline engines
Your vehicle is designed to use“Regular”unleaded gasoline with an
(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.
FFV engine (if equipped)
Your vehicle is designed to use (E85) Fuel Ethanol,“Regular”unleaded
gasoline or any percentage of the two fuels combined.
U.S. government regulations require fuel ethanol dispensing
pumps to have a small, square, orange and black label with the
common abbreviation or the appropriate percentage for that
region. Use of other fuels such as Fuel Methanol may cause
powertrain damage, a loss of vehicle performance, and your
warranty may be invalidated.
87(R+M)/2 METHOD
Maintenance and Specifications
184

Fuel quality
Many of the world’s automakers
issued 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. In Canada,
look for fuels that display theAuto Makers’Choice
logo.
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.
Unleaded Gasoline engines
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 (particularly
in the United States) because it may cause these problems to become
more pronounced. If the problems persist, see your dealer or a qualified
service technician.
FFV engine (if equipped)
Your FFV will operate well on ordinary“Regular”unleaded gasoline, but
only the highest quality fuel ethanol will provide the same level of
protection and performance. To identify if your vehicle is an FFV, check
your VIN or the label on the inside of your fuel filler door. When
checking the VIN, look for the engine type identifier (8th character). If
your vehicle is an FFV, then the character will be labeled as a“K.”
If you operate your vehicle 50% or more of the time on ethanol, you
should follow a different maintenance schedule. See theScheduled
Maintenance Guidefor more information.
If you are experiencing a rough or rolling idle after start-up with the
outside temperature above 27°C (80°F), the idle should improve within
10 to 30 seconds. If the problems persist below this temperature, see
your dealer or a qualified service technician.
Maintenance and Specifications
185

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 theRefill capacities
section 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 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 kilometers or miles).
2. Each time you fill the tank, record the amount of fuel added (in liters
or gallons).
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.
Maintenance and Specifications
187

MERCONand MERCONV type fluids are not interchangeable.
DO NOT mix MERCONand MERCONV. Use of a transmission
fluid that indicates dual usage (MERCONand MERCONV) in
an automatic transmission application requiring MERCONmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
ENGINE DATA
Engine 3.0L V6 Vulcan
engine3.0L FFV V6
engine3.0L DOHC V6
Duratec engine
Cubic inches 182 182 183
Required fuel 87 octane 87 octane or
Ethanol (E 85)87 octane
Firing order 1-4-2-5-3-6 1-4-2-5-3-6 1-4-2-5-3-6
Spark plug gap 1.07-1.17 mm
(0.042-0.046
inch)1.07-1.17 mm
(0.042-0.046
inch)1.3-1.4 mm
(0.052-0.056
inch)
Ignition system EDIS EDIS EDIS
Compression
ratio9.7:1 9.7:1 10.0:1
VEHICLE DIMENSIONS
Vehicle dimensions Sedan mm (in) Wagon mm (in)
(1) Overall length 5020 (197.6) 5022 (197.7)
(2) Overall width 1855 (73.0) 1855 (73.0)
(3) Overall height 1426 (56.1) 1468 (57.8)
(4) Wheelbase 2757 (108.5) 2757 (108.5)
(5) Track - Front 1566 (61.6) 1566 (61.6)
(5) Track - Rear 1577 (62.1) 1570 (61.8)
Maintenance and Specifications
203

refill capacities ........................200
specifications ..................201, 203
Exhaust fumes ..........................116
F
Flexible Fuel Vehicle (FFV) ....180
Floor mats ...................................58
Fluid capacities .........................200
Fuel ............................................180
calculating fuel economy .......186
cap ...........................................183
capacity ...................................200
choosing the right fuel ...........184
comparisons with EPA fuel
economy estimates .................189
detergent in fuel .....................186
filling your vehicle with
fuel ...........................180, 183, 187
filter, specifications ........186, 199
fuel pump shut-off switch .....130
improving fuel economy ........186
octane rating ...................184, 203
quality ......................................185
running out of fuel .................186
safety information relating
to automotive fuels ................180
Fuel - flex fuel vehicle
(FFV) .................................180, 184
Fuses ..................................132–133
G
Gas cap (see Fuel cap) ............183
Gas mileage (see Fuel
economy) ...................................186
Gauges .........................................13
GAWR (Gross Axle Weight
Rating) .......................................123definition .................................123
driving with a heavy load ......123
location ....................................123
GVWR (Gross Vehicle Weight
Rating) .......................................123
calculating ...............................123
definition .................................123
driving with a heavy load ......123
location ....................................123
H
Headlamps ...................................30
aiming ........................................32
autolamp system .......................30
bulb specifications ....................35
daytime running lights .............30
flash to pass ..............................31
high beam .................................31
replacing bulbs .........................37
turning on and off ....................30
Heating
heating and air conditioning
system .................................24, 26
Hood ..........................................166
I
Ignition ...............................112, 203
Infant seats
(see Safety seats) .....................103
Inspection/maintenance (I/M)
testing ........................................191
Instrument panel
cleaning ...................................162
cluster ........................................10
lighting up panel and
interior .......................................31
J
Jack ............................................138
Index
212

positioning ...............................138
storage .....................................138
Jump-starting your vehicle ......142
K
Keyless entry system .................68
Keys
positions of the ignition .........112
L
Lamps
autolamp system .......................30
bulb replacement
specifications chart ..................35
cargo lamps ...............................31
daytime running light ...............30
headlamps .................................30
headlamps, flash to pass ..........31
instrument panel, dimming .....31
interior lamps .....................34–36
replacing
bulbs ..................35, 37, 39–42, 44
Lane change indicator
(see Turn signal) ........................33
Liftgate ........................................58
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........117
speed control ............................55
Load limits .................................123
GAWR ......................................123
GVWR ......................................123
trailer towing ..........................123
Locks
childproof ..................................62
doors ..........................................62
Lubricant specifications ...201, 203
Lumbar support, seats ...............76M
Mirrors ...................................48–49
automatic dimming rearview
mirror ........................................49
heated ........................................52
side view mirrors (power) .......51
Moon roof ....................................55
Motorcraft parts ................186, 199
O
Octane rating ............................184
Oil (see Engine oil) ..................170
Overdrive ...................................120
P
Parking brake ............................117
Parts (see Motorcraft parts) ....199
Pedals (see Power adjustable
foot pedals) .................................52
Power adjustable foot pedals .....52
Power distribution box
(see Fuses) ...............................136
Power door locks ........................62
Power point .................................48
Power steering ..........................118
fluid, checking and adding ....191
fluid, refill capacity ................200
fluid, specifications .........201, 203
Power Windows ...........................48
R
Radio ................................15–16, 19
Rear window defroster ...............28
Relays ........................................138
Index
213