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TIRE CARE
Information About Uniform Tire
Quality Grading
Tire Quality Grades apply to new
pneumatic passenger car tires. The Quality
grades can be found where applicable on
the tire sidewall between tread shoulder
and maximum section width. For example:
Treadwear 200 Traction AA
Temperature A.
These Tire Quality Grades are determined
by standards that the United States
Department of Transportation has set.
Tire Quality Grades apply to new
pneumatic passenger car tires. They do
not apply to deep tread, winter-type snow
tires, space-saver or temporary use spare
tires, light truck or LT type tires, tires with
nominal rim diameters of 10 to 12 inches
or limited production tires as defined in
Title 49 Code of Federal Regulations Part
575.104 (c)(2).
U.S. Department of Transportation Tire
quality grades: The U.S. Department of
Transportation requires Ford Motor
Company to give you the following
information about tire grades exactly as
the government has written it.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 (11⁄2) 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 CWARNING
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.
The traction grades, from highest to lowest
are AA, A, B, and C. The 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.
Temperature A B C
WARNING
The temperature grade for this tire
is established for a tire that is
properly inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either separately or in
combination, can cause heat buildup and
possible tire failure.
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Information on P Type Tires
P215/65R15 95H is an example of a tire
size, load index and speed rating. The
definitions of these items are listed below.
(Note that the tire size, load index and
speed rating for your vehicle may be
different from this example.)
A.P: Indicates a tire, designated by the Tire
and Rim Association (T&RA), that may be
used for service on cars, SUVs, minivans
and light trucks. Note: If your tire size does
not begin with a letter this may mean it is
designated by either ETRTO (European
Tire and Rim Technical Organization) or
JATMA (Japan Tire Manufacturing
Association).
B. 215: Indicates the nominal width of the
tire in millimeters from sidewall edge to
sidewall edge. In general, the larger the
number, the wider the tire.
C. 65: Indicates the aspect ratio which
gives the tire's ratio of height to width.
D. R: Indicates a radial type tire. E.
15: Indicates the wheel or rim diameter
in inches. If you change your wheel size,
you will have to purchase new tires to
match the new wheel diameter.
F. 95: Indicates the tire's load index. It is
an index that relates to how much weight
a tire can carry. You may find this
information in your owner ’s manual. If not,
contact a local tire dealer.
Note: You may not find this information on
all tires because it is not required by federal
law.
G. H: Indicates the tire's speed rating. The
speed rating denotes the speed at which
a tire is designed to be driven for extended
periods of time under a standard condition
of load and inflation pressure. The tires on
your vehicle may operate at different
conditions for load and inflation pressure.
These speed ratings may need to be
adjusted for the difference in conditions.
The ratings range from 81 mph (130 km/h)
to 186 mph (299 km/h). These ratings are
listed in the following chart.
Note: You may not find this information on
all tires because it is not required by federal
law.
Speed rating - mph (km/ h)
Letter rating
81 mph (130 km/h)
M
87 mph (140 km/h)
N
99 mph (159 km/h)
Q
106 mph (171 km/h)
R
112 mph (180 km/h)
S
118 mph (190 km/h)
T
124 mph (200 km/h)
U
130 mph (210 km/h)
H
149 mph (240 km/h)
V
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T type tires have some additional
information beyond those of P type tires;
these differences are described below:
A.T: Indicates a type of tire, designated by
the Tire and Rim Association (T&RA), that
is intended for temporary service on cars,
SUVs, minivans and light trucks.
B. 145: Indicates the nominal width of the
tire in millimeters from sidewall edge to
sidewall edge. In general, the larger the
number, the wider the tire.
C. 80: Indicates the aspect ratio which
gives the tire's ratio of height to width.
Numbers of 70 or lower indicate a short
sidewall.
D. D: Indicates a diagonal type tire.
R: Indicates a radial type tire. E.
16: Indicates the wheel or rim diameter
in inches. If you change your wheel size,
you will have to purchase new tires to
match the new wheel diameter.
Location of the Tire Label
You will find a Tire Label containing tire
inflation pressure by tire size and other
important information located on the
B-Pillar or the edge of the driver ’s door.
Inflating Your Tires
Safe operation of your vehicle requires that
your tires are properly inflated. Remember
that a tire can lose up to half of its air
pressure without appearing flat.
Every day before you drive, check your tires.
If one looks lower than the others, use a
tire gauge to check pressure of all tires and
adjust if required.
At least once a month and before long
trips, inspect each tire and check the tire
pressure with a tire gauge (including spare,
if equipped). Inflate all tires to the inflation
pressure recommended by Ford Motor
Company.
You are strongly urged to buy a reliable tire
pressure gauge, as automatic service
station gauges may be inaccurate. Ford
recommends the use of a digital or
dial-type tire pressure gauge rather than a
stick-type tire pressure gauge.
Use the recommended cold inflation
pressure for optimum tire performance and
wear. Under-inflation or over-inflation may
cause uneven treadwear patterns
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