Ford Mustang Owner's Manual page 217

Changing the Engine Oil and the Oil Filter
Change the engine oil and oil filter per the
following, whichever occurs first.
NOTE: 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, startup 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 application.
Refer to the Maintenance Schedule booklet for
additional information.
NOTE: Always dispose of used automotive
fluids in a responsible manner. Follow
your community's standards for
disposing of these types of fluids. Call
your local recycling center to find out
about recycling automotive fluids.
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