operation. Vary your speed to allow parts to adjust
themselves to other parts.
Do not add friction modifier compounds or special
break-in oils during the first few thousand
kilometers (miles) of operation, since these additives
may prevent piston ring seating. SeeEngine oilin
theMaintenance and specificationschapter for
more information on oil usage.
SPECIAL NOTICES
Emission warranty
The New Vehicle Limited Warranty includes
Bumper-to-Bumper Coverage, Safety Restraint
Coverage, Corrosion Coverage, and 6.0L Power
Stroke Diesel Engine Coverage. In addition, your
vehicle is eligible for Emissions Defect and
Emissions Performance Warranties. For a detailed
description of what is covered and what is not
covered, refer to theWarranty Guidethat is
provided to you along with your Owner’s Guide.
Special instructions
For your added safety, your vehicle is fitted with
sophisticated electronic controls.
Please read the sectionSupplemental
Restraint System (SRS)in theSeating and
safety restraintschapter. Failure to follow the
specific warnings and instructions could result in
personal injury.
Front seat mounted rear facing child or
infant seats shouldNEVERbe used in front
of a passenger side air bag unless the air bag can
be and is turned OFF.
Data Recording
Computers in your vehicle are capable of recording
detailed data potentially including but not limited to
information such as:
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Introduction
6
Adding engine oil
1. Check the engine oil. For instructions, refer to
Checking 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 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 1/4 of a turn until three clicks
are heard or until the cap is fully seated.
To avoid possible oil loss, DO NOT operate the
vehicle with the engine oil level indicator
and/or the engine oil filler cap removed.
Engine oil and filter recommendations
Look for this
certification trademark.
Use SAE 5W-20 engine oil.
Only use oils“Certified For Gasoline Engines”by the
American Petroleum Institute (API). To protect your
engine’s warranty use Motorcraft SAE 5W-20 or an
equivalent 5W-20 oil meeting Ford specification
WSS-M2C153–H.SAE 5W-20 oil provides
optimum fuel economy and durability
performance meeting all requirements for your
vehicle’s engine.
Do not use supplemental engine oil additives,
cleaners or other engine treatments. They are
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
170
