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 1 ½ 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.
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If you have a dissimilar spare wheel and tire,
then it is intended for temporary use only.
This means that if you need to use it, you
should replace it as soon as possible with a
road wheel and tire assembly that is the
same size and type as the road tires and
wheels that were originally provided by Ford.
If the dissimilar spare tire or wheel is
damaged, it should be replaced rather than
repaired.
A dissimilar spare wheel and tire assembly
is defined as a spare wheel and tire assembly
that is different in brand, size or appearance
from the road tires and wheels and can be
one of three types:
1.
T-type mini-spare: This spare tire begins
with the letter T for tire size and may have
Temporary Use Only molded in the sidewall.
2. Full-size dissimilar spare with label on
wheel:
This spare tire has a label on the
wheel that states: THIS WHEEL AND TIRE
ASSEMBLY FOR TEMPORARY USE ONLY.
When driving with one of the dissimilar spare
tires listed above, do not:
• Exceed 50 mph (80 km/h)
• Load the vehicle beyond maximum
vehicle load rating listed on the Safety
Compliance Label.
• Tow a trailer. •
Use snow chains on the end of the vehicle
with the dissimilar spare tire.
• Use more than one dissimilar spare tire
at a time.
• Use commercial car washing equipment.
• Try to repair the dissimilar spare tire.
Use of one of the dissimilar spare tires listed
above at any one wheel location can lead to
impairment of the following:
• Handling, stability and braking
performance.
• Comfort and noise.
• Ground clearance and parking at curbs.
• Winter weather driving capability.
• Wet weather driving capability.
• All-wheel driving capability (if
applicable).
3. Full-size dissimilar spare without label
on wheel
When driving with the full-size dissimilar
spare wheel and tire assembly, do not:
• Exceed 70 mph (113 km/h).
• Use more than one dissimilar spare wheel
and tire assembly at a time. •
Use commercial car washing equipment.
• Use snow chains on the end of the vehicle
with the dissimilar spare wheel and tire
assembly.
The usage of a full-size dissimilar spare
wheel and tire assembly can lead to
impairment of the following:
• Handling, stability and braking
performance.
• Comfort and noise.
• Ground clearance and parking at curbs.
• Winter weather driving capability.
• Wet weather driving capability.
• All-wheel driving capability (if
applicable).
• Load leveling adjustment (if applicable).
When driving with the full-size dissimilar
spare wheel and tire assembly additional
caution should be given to:
• Towing a trailer.
• Driving vehicles equipped with a camper
body.
• Driving vehicles with a load on the cargo
rack.
Drive cautiously when using a full-size
dissimilar spare wheel and tire assembly and
seek service as soon as possible.
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