REPAIRS - WHEREVER POSSIBLE, SEE YOUR BFGOODRICH®
TIRE RETAILER AT ONCE
If any BFGoodrich® tire sustains a puncture, have the tire demounted
and thoroughly inspected by any BFGoodrich® tire retailer for possible
damage that may have occurred.
A tread area puncture in any BFGoodrich® passenger or light truck tire
can be repaired provided that the puncture hole is not more than 1/4” in
diameter, not more than one radial cable per casing ply is damaged, and
the tire has not been damaged further by the puncturing object or by
running underinflated. Tire punctures consistent with these guidelines
can be repaired by following the Rubber Manufacturers Association
(RMA) recommended repair procedures.
TIRE REPAIRS
Repairs of all tires must be of the combined plug and inside patch type.
Plug only repairs are improper.A tire should be removed from the rim
and inspected prior to repair. Any tire repair done without removing the
tire from the rim is improper. An improperly repaired tire will cause
further damage to the tire by either leaking air or allowing air, moisture
and contaminants to enter the structure of the tire. An improperly
repaired tire can fail suddenly at a later date.
Never repair a tire with less than 2/32 nds of an inch tread remaining. At
this tread depth, the tire is worn out and must be replaced.
TEMPORARY SPARE TIRES
When using any temporary spare tire, be sure to follow the vehicle
manufacturer ’s instructions.
READING THE DOT
DOT XXXX XXXX XXX (prior to August 2000)
DOT XXXX XXXX XXX (1990-1999)
DOT XXXX XXXX XXXX (after July 2000)
THE DOT
The “DOT” symbol certifies tire manufacturer ’s compliance with U.S.
Department of Transportation tire safety standards. Next to the symbol is
the tire identification or “serial number”. The first two characters identify
the plant where the tire was manufactured. The next two characters
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reflect the tire size. The following one to four digits may be used at the
tire manufacturer ’s option as a descriptive code. The last three characters
are numbers identifying the week and year of manufacture. (Example:
“O25” means second week of the year of decade, eg.: 1995, 1985, etc.)
Tires produced after July 2000 have an additional digit to identify a given
decade. For example, 2800 means the tire was produced during the 28th
week of 2000; 0201 during the 2nd week of 2001. If the last digits of your
DOT number contain three numeric characters consult a qualified tire
technician to determine the year and decade of manufacture.
STORAGE
Tires contain waxes and emollients to protect their outer surfaces from
ozone and weather checking. As the tire rolls and flexes, the waxes and
emollients continually migrate to the surface, replenishing this protection
throughout the normal use of the tire. Consequently, when tires sit
outdoors, unused for long periods of time (a month or more) their
surfaces become dry and more susceptible to ozone and weather check-
ing and the casing becomes susceptible to flat spotting.
For this reason, tires should always be stored in a cool, dry, clean,
indoor environment. If storage is for one month or more, eliminate the
weight from the tires by raising the vehicle or by removing the tires
from the vehicle. Failure to store tires in accordance with these
instructions could result in damage to your tires or premature aging of
the tires and sudden tire failure.
When tires are stored, be sure they are placed away from sources of heat
and ozone such as hot pipes and electric generators. Be sure that surfaces
on which tires are stored are clean and free from grease, gasoline or other
substances which could deteriorate the rubber.(Tires exposed to these
materials during storage or driving could be subject to sudden failure.)
FOLLOW THESE MOUNTING RECOMMENDATIONS
Tire changing can be dangerous and must be done by professionally
trained persons using proper tools and procedures as specified by the
Rubber Manufacturers Association (RMA).
Your tires should be mounted on wheels of correct size and type and
which are in good, clean condition. Wheels that are bent, chipped, rusted
(steel wheels) or corroded (alloy wheels) may cause tire damage. The
inside of the tire must be free from foreign material. Have your retailer
check the wheels before mounting new tires. Mismatched tires and rims
BFGOODRICH TIRES
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can explode during mounting. Also, mismatched tires and rims can result
in dangerous tire failure on the road. If a tire is mounted by error on the
wrong-sized rim, do not remount it on the proper rim - scrap it. It may
have been damaged internally (which is not externally visible) by having
been dangerously stretched and could fail on the highway.
Old valves may leak. When new tubeless tires are mounted, have new
valves of the correct type installed. Tubeless tires must only be
mounted on wheels designed for tubeless tires i.e., wheels which have
safety humps or ledges.
It is recommended that you have your tires and wheels balanced. Tires
and wheels which are not balanced may cause steering difficulties, a
bumpy ride, and irregular tire wear.
Be sure that all your valves have suitable valve caps. The valve cap is
the primary seal against air loss.
SERVICE LIFE FOR PASSENGER CAR AND LIGHT TRUCK
TIRES INCLUDING SPARE TIRES
The following recommendation applies to passenger car and light truck
tires. Tires are composed of various types of material and rubber
compounds, having performance properties essential to the proper
functioning of the tire itself. These component properties evolve over
time. For each tire, this evolution depends upon many factors such as
weather, storage conditions, and conditions of use (load, speed, inflation
pressure, maintenance etc.) to which the tire is subjected throughout its
life. This service-related evolution varies widely so that accurately
predicting the serviceable life of any specific tire in advance is not
possible.
That it is why, in addition to regular inspections and inflation pressure
maintenance by consumers, it is recommended to have passenger car and
light truck tires, including spare tires, inspected regularly by a qualified
tire specialist, such as a tire dealer, who will assess the tire’s suitability for
continued service. Tires which have been in use for 5 years or more
should continue to be inspected by a specialist at least annually.
Consumers are strongly encouraged to be aware not only of their tires’
visual condition and inflation pressure but also of any change in dynamic
performance such as increased air loss, noise or vibration, which could be
an indication that the tires need to be removed from service to prevent
tire failure.
BFGOODRICH TIRES42
HIGH PERFORMANCE, LOW ASPECT RATIO TIRES
Many new vehicles come equipped from the factory with high perfor-
mance and/or low aspect ratio tires. Generally, these tires provide
increased vehicle handling capability, but may also have numerous
engineering performance trade-offs associated with their designs.
•Low aspect ratio tires, with reduced sidewall height, may be more
susceptible to damage from potholes, road hazards, and other objects
such as curbs. This is true for the wheels as well. Therefore, as with all
other tires, it is important to drive with care and maintain proper
inflation pressure and load conditions. See “Tire Inflation Pressure”
and “Tire Damage, Inspection and Service Life” in this manual.
• Some
sports cars and other handling performance enhanced vehicles,
including sedans and light trucks/SUVs, may be originally equipped
with high performance tires that are more optimized for warmer
weather use. Colder, inter weather traction may be reduced for these
types of tires. Winter tires may be recommended by the vehicle
manufactur
er for colder weather application. See “Winter Tires,” the
next section in this manual.
• High performance tires may also wear more quickly, ride more firmly,
and produce more noise during operation.
Consult your vehicle owner ’s manual and tire information placard, or a
qualified tire service professional, for more information and specifics
regarding these types of tires.
WINTER TIRES
WARNING!
Winter driving presents special challenges for vehicle mobility. The
use of inter tires (including studs and chains)—while improving
traction performance in snow and ice—requires special care with
regard to acceleration, braking, cornering, and speed. It is important
to drive with care, not only on snow and ice, but on dry and wet
roads as well.
BRIDGESTONE® - FIRESTONE®
In inter driving conditions, vehicle control and safe operation under
braking and cornering is especially dependent upon the rear tires. For
this reason, inter tires are best applied to all wheel positions. Some
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If your spare is the same size, load rating, and type of tire as your road
tires, it should be included in the tire rotation process. For vehicles with
a “full-size” spare, the following rotation patterns may be used:
NOTE:
•Never include a “temporary use” spare tire in the rotation.
• Tires with directional tread patterns must be rotated so the direction of
revolution does not change; this may require demounting/mounting
the tires.
• Special attention should be given if your vehicle is equipped with a
Tire Pressure Monitoring System (TPMS). Rotation of your tires may
affect the system; consult your vehicle owner ’s manual or a qualified
tire service professional.
• Some vehicles may have different size tires/wheels on front and rear
which would restrict rotation. Always check and follow the vehicle
manufacturer ’s rotation recommendation.
• To use a full-size spare in the rotation pattern on vehicles with dual
rear wheels, consult your vehicle owner ’s manual for the recom-
mended procedures or consult the vehicle manufacturer.
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YOUR SPARE TIRE
Consult your vehicle owner ’s manual for proper application of your
spare tire. Your car may be equipped with a “temporary use” spare tire;
this spare may differ in size and construction from the other tires on your
vehicle.
WARNING!
Check inflation pressure before use. Failure to have proper inflation
pressure when using your spare tire can result in serious personal
injury or death. See Tire Inflation Pressure in this manual.
WARNING!
Mounting a “temporary use” tire on a wheel which is not
specifically designed for it, or placing another type tire on a wheel
designated for temporary use can be dangerous. Your vehicle’s
handling characteristics can be seriously affected. You could have an
accident resulting in serious personal injury or death. Consult your
vehicle owner ’s manual for proper application of your “temporary
use” spare tire.
The spare tire in your vehicle is intended to be used as a spare when
needed. The spare tire carrier is not intended to be used for long term
storage, except for “temporary use” tires. If your spare is the same size,
load rating, and type of tire as your road tires, it should be included in the
tire rotation process; see “Radial Tire Rotation” in this manual for more
information.
The spare should be included in regular tire inspections and inflation
pressure checks. In addition, it should be replaced 10 years after date of
manufacture, regardless of condition or tread depth. For more informa-
tion, see the “Tire Damage, Inspection and Service Life” in this manual.
TIRE STORAGE
Tires should be stored indoors in a cool, dry place where water cannot
collect inside them. Tires should be placed away from electric
generators/motors and sources of heat such as hot pipes. Storage
surfaces should be clean and free of grease, gasoline or other substances
which can deteriorate the rubber.
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Ply Composition and Materials:The actual number of plies in the
sidewall and tread area and the generic name(s) of their cord material(s)
are marked on at least one sidewall. For example:
• TREAD 2 PLY POLYESTER + 2 STEEL
• SIDEWALL 2 PLY POLYESTER
Radial: Radial ply tires will have the word radialon at least one
sidewall. An “R” in the tire size designation also indicates radial ply
construction.
Tubeless or Tube Type: Tires are marked as either “tubeless” or “tube
type,” whichever is applicable, on at least one sidewall.
UNIFORM TIRE QUALITY GRADING
The Uniform Tire Quality Grading (“UTQG”) standards are intended to
assist you in making an informed choice in your purchase of passenger
car tires by providing information indicating relative performance of
these tires in the areas of tread wear, wet braking traction (straight-
ahead), and temperature resistance. All passenger car tires must conform
to federal safety requirements in addition to these grades.
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
variation in driving habits, service practices and differences in road
characteristics and climate.
Traction
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. Warning: The traction grade assigned to a tire is
based on straight-ahead braking traction tests, and does not include
acceleration, cornering, hydroplaning, or peak traction characteristics.
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TIRE REPAIRS
In the event that you get a flat tire while driving, it is best to find a nearby,
safe place to stop and install your spare tire or call a tow truck. The less
distance that you drive on your low or flat tire, the better chances your
tire has of being repairable. Once you are able to get to your local
servicing tire dealer, have them dismount the tire from the rim and
thoroughly inspect the inside of the tire. It is important to know the
difference between a proper tire repair and an improper one because it
can be critical to you and your vehicle’s safety. An improper repair could
pose a safety threat to you and your family and could also affect your
tire’s manufacturer warranty. Here are some tips in determining if your
damaged tire can be properly repaired or not:
•Always have the tire removed from the wheel and inspected before
any repair is performed.
• Tires with less than 1.6 mm (2/32 of an inch) of tread should NOT be
repaired.
• Never repair a tire with a puncture larger than 6 mm (1/4 of an inch).
• Repairs should be limited to the tread area only.
• Repairs cannot overlap one another.
• A plug and patch or plug/patch combo should be used to effectively
repair a tire puncture.
• If anything seems questionable at any time during the repair process,
ask your service advisor for more details and/or call the tire manu-
facturer to make sure the tire’s warranty isn’t being voided.
TIRE MIX USAGE
WARNING!
Never mix tires of different size or construction and/or type on any
axle. (Except for temporary use as a spare tire.) Always refer to the
vehicle’s owner manual for proper tire fitments.
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