2000 Mercury Mystique service

Maintenance and care
189 Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test course.
For example, a tire graded 150
would wear one and one-half
(1 1/2) times as well on the
government course as a tire graded
100. The relative performance of
tires depends upon the actual
conditions of their use, however,
and may depart significantly from
the norm due to variations in
driving habits, service practices,
and differences in road
characteristics and climate.
Traction AA A B C
The traction grades, from highest
to lowest are AA, A, B, and C.
Those grades represent the tire’s
ability to stop on wet pavement as
measured under controlled
conditions on specified government
test surfaces of asphalt and
concrete. A tire marked C may
have poor traction performance.
The traction grade assigned
to this tire is based on
straight-ahead braking traction
tests, and does not include
acceleration, cornering,
hydroplaning, or peak traction
characteristics.
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Maintenance and care
191 Checking tire pressure
Check the tire pressure
periodically after the vehicle has
been parked for at least one hour
or has been driven less than 5 km
(3 miles). Inflate the tires as
necessary. To check the tire
pressure, insert the tire pressure
gauge into the valve.
The cold pressure amount is listed
on the Safety Compliance
Certification label.
Improperly inflated tires can
affect vehicle handling and
can fail suddenly, possibly
resulting in loss of vehicle control.
Rotating tires
Rotate your tires at regular
intervals for even wear. Rotation
intervals are listed in the
maintenance guide and or service
guide.
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Maintenance and care
193 Dispose of worn tires in
accordance with local
environmental regulations.
Refer to the Safety Compliance
Certification label to determine the
specific size tire and wheel Ford
Motor Company recommends for
use on this vehicle.
When purchasing replacement tires
for your vehicle, consult your
dealer or a qualified service
technician to ensure that the
correct tire type is used.
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Maintenance and care
194The tires on your vehicle have all-
weather treads to provide traction
in rain and snow. However, in some
climates, using snow tires and
chains may be necessary. Ford
offers snow chains as a Ford
approved accessory and
recommends use of these or their
equivalents on approved tires. See
your dealer or a qualified service
technician for more information on
tire chains for your vehicle. Follow
these guidelines when using snow
tires and chains:
• Install chains securely, verifying
that the chains do not touch any
wiring, brake lines or fuel lines.
• Install the chains on the front
tires only.
• Do not use tire chains on 205/60
tires and 205/55R16 Z rated tires.
Steering, suspension and body
components may be damaged by
use of chains.
Snow tires must be the same
size and grade as the tires
you currently have on your
vehicle.
Using snow tires and chains
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Maintenance and care
199 Octane recommendations
Your vehicle is designed to use
regular gasoline with an (R+M)/2
octane rating of 87. We do not
recommend gasolines labeled as
“regular” in high altitude areas that
are sold with octane ratings of 86
or even less.
Do not be concerned if your vehicle
sometimes knocks lightly. However,
if it knocks heavily under most
driving conditions on the
recommended octane, see your
dealer or a qualified service
technician to prevent any engine
damage.
87
MINIMUM OCTANE RATING
(R+M)/2 Method
Fuel quality
If you are experiencing starting,
rough idle or hesitation problems
try a different brand of fuel. If the
condition persists, see your dealer
or qualified service technician.
The American Automobile
Manufacturers Association
(AAMA) issued a gasoline
specification to provide information
on high quality fuels that optimize
the performance of your vehicle.
We recommend the use of gasolines
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.
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Maintenance and care
202EMISSION CONTROL SYSTEM
Your vehicle is equipped with
various emission control
components and a catalytic
converter which will enable your
vehicle to comply with applicable
exhaust emission standards. To
make sure that the catalytic
converter and other emission
control components continue to
work properly:
• Use unleaded fuel only.
• Avoid running out of fuel.
• Do not turn off the ignition while
your vehicle is moving, especially
at high speeds.
• Have the items listed in your
“Scheduled Maintenance Guide”
performed according to the
specified schedule.
The scheduled maintenance
services listed in the “Scheduled
Maintenance Guide“ are required
because they are considered
essential to the life and
performance of your vehicle and to
its emissions system.
If other than Ford, Motorcraft, or
Ford authorized parts are used for
maintenance replacements or for
service of components affecting
emissions control, such non-Ford
parts should be equivalent to
genuine Ford Motor Company parts
in performance and durability.
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Maintenance and care
204
Do not make any unauthorized
changes to your vehicle or engine.
By law, vehicle owners and anyone
who manufactures, repairs,
services, sells, leases, trades
vehicles, or supervises a fleet of
vehicles are not permitted to
intentionally remove an emission
control device or prevent it from
working. Information about your
vehicle's emission system is on the
Vehicle Emission Control
Information Decal located under
the hood. This decal identifies
engine displacement and gives
some tune up specifications.
Please consult your “Warranty
Guide“ for complete emission
warranty information.
Readiness for
inspection/maintenance (I/M)
testing
In some localities, it may be a legal
requirement to pass an I/M test of
the on-board diagnostic (OBD-II)
system. If your check enginelight
is on, refer to the description in the
Instrument Cluster Lights and
Chimessection of the
Instrumentation chapter. Your
vehicle may not pass the I/M test
with the check engine light on.
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Maintenance and care
205 If the vehicle’s powertrain system
or its battery has just been
serviced, the OBD-II system is
reset to a “not ready for I/M test“
condition. To ready the OBD-II
system for I/M testing, a minimum
of 30 minutes of city and highway
driving is necessary as described
below:
• First, at least 10 minutes of
driving on an expressway or
highway.
• Next, at least 20 minutes of
driving in stop and go, city-type
traffic with at least four idle
periods.
Allow the vehicle to sit for at least
eight hours without starting the
engine. Then, start the engine and
complete the above driving cycle.
The engine must warm up to its
normal operating temperature.
Once started, do not turn off the
engine until the above driving cycle
is complete.
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