1999 FORD F150 octane

Octane recommendations
Your vehicle is designed to use
ªRegularº unleaded gasoline with an
(R+M)/2 octane rating of 87. We do
not recommend the use of gasolines
labeled as ªRegularº 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 dealer or a qualified
service technician to prevent any engine damage.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems during a cold start, try a different brand of ªRegularº unleaded
gasoline. ªPremiumº 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.
The American Automobile Manufacturers Association (AAMA) issued a
fuel specification to provide information on high quality fuels that
optimize the performance of your vehicle. We recommend the use of
fuels that meet the AAMA specification if they are available.
It should not be necessary to add any aftermarket products to your fuel
tank if you continue to use a high-quality fuel.
Cleaner air
Ford approves the use of gasolines to improve air quality, including
reformulated gasolines that contain oxygenates up to 10% ethanol or
15% MTBE.
Running out of fuel
Avoid running out fuel because this situation may have an adverse affect
on modern powertrain components.
If you have run out of fuel:
²You may need to crank the engine several times before the system
starts to pump fuel from the tank to the engine.
87(R+M)/2 METHOD
Maintenance and care
197

For fuel filter replacement, see your dealer or a qualified service
technician. Refer to the Scheduled Maintenance Guide for the
appropriate intervals for changing the fuel filter.
If you replace the fuel filter, replace it with an authorized
Motorcraft part. The customer warranty may be void for any
damage to the fuel system if an authorized Motorcraft fuel filter
is not used.
ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fillups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1 600 km (1 000
miles) of driving (engine break-in period). You will get a more accurate
measurement after 3 000 km±5 000 km (2 000 miles-3 000 miles).
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 the Refill Capacities
chart in this ªOwner Guide.º 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 usable fuel remaining in the fuel tank after the fuel gauge indicates
empty.
The amount of 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.
Filling the tank
For consistent results:
²Use the same filling rate setting (low Ð medium Ð high) each time
the tank is filled.
²Allow three automatic click-offs when filling.
²Always use the recommended octane rating of a known quality
gasoline, preferably a national brand.
Maintenance and care
199

1Add 118 ml (4 oz.) of additive friction modifier C8AZ-19B546±A, Ford
specification EST-M2C118±A for complete refill of 8.8 inch and 9.75 inch
Traction-Lok axles. Add 236 ml (8 oz.) of additive friction modifier
C8AZ-19B546±A, Ford specification EST-M2C118±A for complete refill of
10.25 and 10.5 inch Traction-Lok axles.
2Refer to the dipstick for the type of transmission fluid required. Some
fluid labels may indicate dual usage such as MERCONtand MERCON
Vt. These dual usage fluids are not to be used in transmissions that use
only the MERCONttype fluid. These dual usage fluids may be used in
transmissions that require MERCONtV use.
Using a transmission fluid that indicates a dual usage (MERCONtand
MERCON Vt) in a transmission application requiring MERCONtmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
ENGINE DATA
Engine 4.2L V6 engine 4.6L V8 engine 5.4L V8 engine
Cubic inches 256 281 330
Horsepower205 @ 4750 rpm 220 @ 4500
rpm
1250 @ 4500 rpm
Torque250 lb.-ft. @
3000 rpm290 lb.-ft. @
3250 rpm345 lb.-ft. @
2250 rpm
Recommended
fuel87 octane 87 octane 87 octane
Firing order 1-4-2-5-3-6 1-3-7-2-6-5-4-8 1-3-7-2-6-5-4-8
Spark plug gap1.3-1.4 mm
(0.052-0.056
inch)1.3-1.4 mm
(0.052-0.056
inch)1.3-1.4 mm
(0.052-0.056
inch)
Ignition system EDIS EDIS Coil on plug
Compression
ratio9.3:1 9.0:1 9.0:1
1All F150 vehicles and F250 with manual transmission. F250 with
automatic transmission is 235 hp @ 4400 rpm.
Capacities and specifications
219

detergent in fuel .....................197
filling your vehicle
with fuel ...........................195,198
quality ......................................197
running out of fuel .................197
safety information relating to
automotive fuels .....................195
Fuses ...................................150,151
Gas mileage
(see Fuel economy) ...199,200,201
Gauges .........................................12
engine coolant temperature
gauge .........................................13
engine oil pressure gauge ........15
fuel gauge ..................................12
GVWR
(Gross Vehicle Weight Rating)
calculating ...............................135
Hazard flashers .........................149
Headlamps
aiming ......................................209
bulb specifications ..................208
high beam ..............................9,68
warning chime ..........................11
Heating ........................................56
heater only system ..............56,57
heating and air
conditioning system ............58,60
Hood ..........................................169
Ignition .......................................219
Inspection/maintenance
(I/M) testing ..............................203
Instrument panel ..........................6
cleaning ...................................212
Keys
key in ignition chime ...............11
positions of the ignition ...........61
removing from the ignition ....127
Lamps
autolamp system .......................17
daytime running light ...............16
fog lamps ...................................16headlamps .................................16
headlamps, flash to pass ..........68
instrument panel, dimming .....17
interior lamps ...........................69
replacing bulbs ..204,206,207,208
Lane change indicator
(see Turn signal) ........................62
Lights, warning and indicator
air bag ..........................................8
air suspension .........................119
anti-lock brakes (ABS) ..............9
anti-theft .....................................9
brake ............................................8
charging system ..........................9
door ajar ....................................11
engine oil pressure ...................10
fuel reset ...................................11
low fuel ........................................6
safety belt ...................................8
service engine soon ....................7
turn signal indicator ...................9
Lumbar support, seats ..........87,88
Manual transmission
reverse .....................................127
Mirrors
fold away ...................................72
side view mirrors (power) .......71
Motorcraft parts ........................198
Octane rating ............................197
Odometer .....................................13
Overdrive .....................................68
Parking brake ............................117
Power distribution box
(see Fuses) ...............................154
Power door locks ..............70,80,81
Power steering ..........................118
fluid,
checking and adding .......181,182
Radio ....19,20,21,22,24,25,26,27,28
29,30,31,33,34,35,36
Relays ........................................150
Remote entry system ............79,80
Index
226

Item Information
Recommended fuel Unleaded fuel only - 87 octane
Fuel tank capacity-4 x 4 Regular
cab with short wheelbase92.7L (24.5 gallons)
Fuel tank capacity-4 x 2 Regular
cab and all SuperCab with short
wheelbase94.6L (25.0 gallons)
Fuel tank capacity-Long wheelbase 113.6L (30.0 gallons)
Engine oil (includes filter change) 5.7L (6.0 quarts). Use Motorcraft
5W30 Super Premium Motor Oil,
Ford specification WSS-M2C153-G.
Tire size and pressure Refer to the Safety Certification
Label inside of drivers's door.
Hood release Pull handle under the left side of
the instrument panel.
Coolant capacity
1Refer toRefill capacitiesin the
Capacities and specifications
chapter.
Power steering fluid capacity Fill to line on reservoir. Use
Motorcraft MERCONtAT F.
Transmission fluid capacity
2Refer toRefill capacitiesin the
Capacities and specifications
chapter.
1Use Ford Premium Cooling System Fluid (green in color). DO NOT
USE Ford Extended Life Engine Coolant (orange in color). Refer to
Adding engine coolant, in the Maintenance and Care chapter.
2Ensure correct automatic transmission fluid is used for a specific
application. Check the container to verify the fluid is MERCONtand/or
MERCONtV approved. Some fluids have been approved as meeting both
MERCONtand MERCONtV requirements and will be labeled as such.
Fluids labeled as meeting only MERCONtor only MERCONtV
requirements must not be used interchangeably. DO NOT mix MERCONt
and MERCONtV. Transmission fluid requirements are indicated on the
dipstick or on the dipstick handle. Refer to your Scheduled Maintenance
Guide to determine the correct service interval.
Filling station information
232