2003 FORD RANGER recommended oil

•4.0L SOHC V6 engine
•Oil levels above the MAX mark may cause engine damage. Some oil
must be removed from the engine by a service technician.
7. Put the indicator back in and ensure it is fully seated.
Adding engine oil
1. Check the engine oil. For instructions, refer toChecking the engine
oilin this chapter.
2. If the engine oil level is not within the normal range, add only certified
engine oil of the recommended viscosity. Remove the engine oil filler cap
and use a funnel to pour the engine oil into the opening.
3. Recheck the engine oil level. Make sure the oil level is not above the
MAX mark or the letter F in FULL on the engine oil level indicator
(dipstick).
4. Install the indicator and ensure it is fully seated.
5. Fully install the engine oil filler cap by turning the filler cap clockwise
until three clicks can be heard.
To avoid possible oil loss, DO NOT operate the vehicle with the
engine oil level indicator and/or the engine oil filler cap removed.
Maintenance and Specifications
196

Engine Oil Recommendations
2.3L & 3.0L Engines
Look for this certification
trademark.
SAE 5W-20 engine oil is recommended.
Change your engine oil and filter according to the appropriate schedule
listed in the scheduled maintenance guide.
Do not use supplemental engine oil additives, oil treatments or engine
treatments. They are unnecessary and could, under certain conditions,
lead to engine damage which is not covered by your warranty.
4.0L Engine
Look for this certification
trademark.
SAE 5W-30 engine oil is recommended.
Only use oils“Certified For Gasoline Engines”by the American
Petroleum Institute (API). Use Motorcraft or an equivalent oil meeting
Ford Specification WSS-M2C205–A.
Do not use supplemental engine oil additives, oil treatments or engine
treatments. They are unnecessary and could, under certain conditions,
lead to engine damage which is not covered by your warranty.
Change your engine oil according to the appropriate schedule listed in
the scheduled maintenance guide.
Maintenance and Specifications
197

Engine Oil Filter Recommendation
Change your engine oil filter according to the appropriate schedule listed
in the scheduled maintenance guide. Ford production and aftermarket
(Motorcraft) oil filters are designed for added engine protection and long
life. If a replacement oil filter is used that does not meet Ford Material
and design specifications, start-up engine noises or knock may be
experienced.
It is recommended you use the appropriate Motorcraft oil filter (or
another brand meeting Ford specifications) for your engine.
BATTERY
Your vehicle is equipped with a
Motorcraft maintenance-free battery
which normally does not require
additional water during its life of
service.
However, for severe usage or in high temperature climates, check the
battery electrolyte level. Refer to the scheduled maintenance guide for
the service interval schedules.
Keep the electrolyte level in each cell up to the“level indicator”.
Do not overfill the battery cells.
If the electrolyte level in the battery is low, you can add plain tap water
to the battery, as long as you do not use hard water (water with a high
mineral or alkali content). If possible, however, try to only fill the battery
cells with distilled water. If the battery needs water often, have the
charging system checked.
If your battery has a cover/shield, make sure it is reinstalled
after the battery has been cleaned or replaced.
For longer, trouble-free operation, keep the top of the battery clean and
dry. Also, make certain the battery cables are always tightly fastened to
the battery terminals.
Maintenance and Specifications
198

•Combine errands and minimize stop-and-go driving.
Maintenance
•Keep tires properly inflated and use only recommended size.
•Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
•Use recommended engine oil. Refer toLubricant specificationsin
this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found in your vehicle scheduled maintenance guide.
Conditions
•Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
•Carrying unnecessary weight may reduce fuel economy (approximately
0.4 km/L [1 mpg] is lost for every 180 kg [400 lb] of weight carried).
•Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
•Using fuel blended with alcohol may lower fuel economy.
•Fuel economy may decrease with lower temperatures during the first
12–16 km (8–10 miles) of driving.
•Driving on flat terrain offers improved fuel economy as compared to
driving on hilly terrain.
•Transmissions give their best fuel economy when operated in the top
cruise gear and with steady pressure on the gas pedal.
•Four-wheel-drive operation (if equipped) is less fuel efficient than
two-wheel-drive operation.
•Close windows for high speed driving.
EPA window sticker
Every new vehicle should have the EPA window sticker. Contact your
dealer if the window sticker is not supplied with your vehicle. The EPA
window sticker should be your guide for the fuel economy comparisons
with other vehicles.
It is important to note the box in the lower left corner of the window
sticker. These numbers represent the Range of L/100 km (MPG)
Maintenance and Specifications
214

in front seat ..............................99
in rear seat ................................99
Cleaning your vehicle
engine compartment ..............182
instrument panel ....................185
interior .....................................185
plastic parts ............................184
washing ....................................181
waxing .....................................181
wheels ......................................182
wiper blades ............................184
Clutch
fluid ..........................................218
operation while driving ..........118
recommended shift speeds ....119
Console ........................................56
Coolant
checking and adding ..............200
refill capacities ................204, 229
specifications ..................233, 236
Cruise control
(see Speed control) ....................53
Customer Assistance ................146
Ford accessories for your
vehicle .............................186, 240
Ford Extended Service
Plan ..........................................173
Getting assistance outside
the U.S. and Canada ..............177
Getting roadside assistance ...146
Getting the service you
need .........................................171
Ordering additional owner’s
literature .................................178
The Dispute Settlement
Board .......................................174
Utilizing the
Mediation/Arbitration
Program ...................................177D
Daytime running lamps
(see Lamps) ................................41
Dipstick
automatic transmission
fluid ..........................................219
engine oil .................................192
Doors
lubricant specifications ..........233
Driveline universal joint and
slip yoke ....................................223
Driving under special
conditions ..................120, 125, 128
sand .........................................127
snow and ice ...........................129
through water .................127, 131
E
Emergencies, roadside
jump-starting ..........................165
Emission control system ..........215
Engine ........................................236
cleaning ...................................182
coolant .....................................200
idle speed control ...................198
lubrication
specifications ..................233, 236
refill capacities ........................229
service points ..................189–191
starting after a collision .........147
Engine block heater .................112
Engine oil ..................................192
checking and adding ..............192
dipstick ....................................192
filter, specifications ........197, 229
recommendations ...................197
refill capacities ........................229
specifications ..................233, 236
Index
244