to the tire’s sidewall. Under inflation causes excessive flexing, deteriora-
tion of the tire and rapid wear of the tread edges. Over inflation results
in an uncomfortable ride, a reduced area of tire contact with the road
surface (i.e., smaller tire footprint), higher susceptibility to impact
damage and rapid wear on the tread center.
WARNING!
Driving on tires with improper inflation pressure is dangerous.
These situations can cause a tire failure, including tread/belt
separation, even at a later date, which could lead to an accident and
serious personal injury or death.
Inflation pressure must be checked at least once a month and should be
checked only when the tire is cold or before it has been driven. Driving
even a short distance (1 kilometer or 2 to 3 minutes) causes tires to heat
up and the air pressure to increase approximately 4 psi. In case it is
necessary to adjust the air pressure in tires that have been driven, the air
pressure should be increased to a gauge reading of 4 psi higher than the
recommended cold inflation pressure.
For Example Only:
Gauge Reading of Hot Tire: 27 PSI.
Recommended Cold Inflation Pressure: 26 PSI
Desired Gauge Reading of Hot Tire: 26 PSI+4PSI=30PSI
Therefore: Add 3 PSI
Check the cold inflation pressure on the tires, at least by the next day.
Never reduce or “bleed” pressure from hot tires since your tires will then
be underinflated when they cool down. Always use a reliable pressure
gauge.
4. UHP Summer Tires
Rubber compounds formulated for ultra high performance summer tires
can lose flexibility and may develop random surface cracks at cold
temperatures. Therefore extra care should be used in handling tires in this
condition. These compounds are optimized for maximum dry and wet
performance in warm conditions. Special tread compounds in these tires
will have decreased performance, such as lateral and braking traction, at
temperatures below 7° C or when driving on snow or ice. Therefore, it is
recommended to install winter tires in these conditions.
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5. DOT Street Legal Competition Tires
P Zero Trofeo and P Zero Corsa tire lines use special tire construction and
compounds to achieve their distinctive performance in dry conditions. As
a result of that, their performance in cold temperatures, heavy rain or
standing water will be decreased. Use extreme caution and drive slowly
on wet roads.
The minimum tread depth will be reached earlier than normal road tires,
resulting in reduced tread life.
6. Winter Tires
The standard Pirelli tires may be effective in light snow conditions.
However, for winter use, you may wish to install winter tires. During
winter use, Pirelli strongly recommends the fitment of 4 winter tires.
Please check your vehicle owner ’s manual concerning winter tire size
recommendation. If the winter tires have a lower speed rating than the
original equipment tires, vehicle handling may be affected, and the
vehicle maximum speed must be reduced to the winter tire speed rating.
Pirelli requires that studded tires be installed on all four positions.
Installing studded tires only on the drive positions of any vehicle,
including a front wheel drive vehicle, may cause adverse handling
characteristics.
7. Run Flat Tires
Always refer to the vehicle owners’ manual with respect to specific safety
and operating information relating to the vehicle. Damaged Run Flat tires
or Run Flat tires that have experienced a loss of pressure should
immediately be replaced with another Run Flat tire of identical size and
Service Description (Load Index and Speed Symbol).
Run Flat tires have been developed based on the specifications of the
vehicles on which they are mounted. Accordingly, Run Flat tires should
only be mounted on vehicles specifically manufactured to accommodate
Run Flat tires.
Run Flat tires must be mounted in conjunction with a functional Tire
Pressure Monitoring System (TPMS).
The mounting of tires and installation of the Tire Pressure Monitoring
System (TPMS) should be carried out by a specialized dealer.
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8. Tire Replacement
The tires fitted to your vehicle as original equipment were tested and
approved by the vehicle manufacturer and the tire manufacturer and take
into account all aspects of the vehicle’s operation. Changes in the tire size,
type or construction should not be made without seeking advice from the
vehicle or tire manufacturer or an authorized Pirelli dealer since unap-
proved tires on your vehicle could adversely affect steering, handling,
braking and traction. The tire information (tire size, load index and speed
symbol) as found on the vehicle placard or in the owner ’s manual should
always be followed when replacing tires.
It is strongly recommended that Pirelli tires be mounted in sets of four
with the same tread type. Pirelli tires should not be mixed with other tire
brands. It is necessary to follow this procedure because different tire
constructions have different handling characteristics. Tires on the same
axle must be the same manufacturer, brand, tire size, load index, speed
rating and Pirelli part number.
When changing only two tires on a vehicle which is homogeneously
fitted (four tires of the same tire size), fit the new tires on the rear axle.
This applies to all vehicles regardless of their drive axle. (Front or Rear
Drive).
On all wheel drive or four wheel drive vehicles the tires must always be
replaced in sets of four.
When replacing tires on light truck vehicles, you should always follow
the vehicle manufacturer ’s recommendations. Passenger and light truck
tires are not interchangeable, due to differences in their pressures and
load carrying capacity.
P-Metric and Euro-metric Interchangeability: Euro-metric (Example: 225/
45R17) tires have a load index which is equal to or greater than that of the
same size P-metric (Example: P225/45R17) tire. Therefore, they have the
same or higher load carrying capacity at the maximum rated inflation
pressure. Always check with your tire dealer or Pirelli Tire Consumer
Affairs to be sure of the exact interchangeability to maintain proper
vehicle dynamics.
Please be aware that it is important that, before fitting the suggested tires,
the fitment is allowed by the technical specifications of the vehicle, the
vehicle manufacturer and the relevant homologations. Pirelli Tire does
not express any view as to the compatibility of the wheel/tire combina-
tion with the technical specifications for the chassis and vehicle.
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TO MAINTAIN PROPER VEHICLE DYNAMICS AND LOAD CARRY-
ING CAPACITY, REPLACEMENT TIRES MUST ALWAYS HAVE A
LOAD INDEX AND SPEED SYMBOL EQUAL TO OR GREATER THAN
THOSE FITTED AS ORIGINAL EQUIPMENT.
When making plus size fitments, you should consult with the dealer
regarding any suspension or braking system modifications which may be
recommended for the vehicle.
9. Tire Inspection
As a minimum, tires (including the spare tire) should be examined and air
pressure checked monthly and always prior to long trips. They should also
be examined if you strike any unusual object on the road. Tires showing
bulges, cracks, cuts, penetrations or uneven wear must be dismounted and
examined by an authorized Pirelli tire dealer and replaced if necessary.
Pirelli tires have treadwear indicators in the tread grooves, which show up
when the tread has worn to 2/32” remaining. At this point, your tires must
be replaced because they are illegal and dangerous.
The mere passage of time (age) does not cause tires to deteriorate, but
rather exposure to outside forces. Such outside forces can include, but are
not limited to: road hazards, punctures, improper repairs, misalignment,
under inflated operation, over inflated operation, excessive heat caused
by over deflected operation, excessive exposure to ozone, improper
storage conditions, etc. Tire companies can only have an impact on a few
of these exposures. Tire companies add antiozinants and anti-oxidants
(anti-degradation compounds) to minimize degradation. Pirelli believes
that since there is no way to accurately predict what outside forces a tire
will be exposed to there is no scientifically supportable age limit that can
be set for tires.
To avoid cosmetic damage, use a mild soap solution to clean sidewalls
and rinse off with low-pressure tap water. Never apply cleaners or
dressings to enhance sidewall appearance to avoid removal of antioxi-
dants, which are intended to prevent ozone degradation. The removal of
anti-oxidants may degrade the rubber and can lead to sidewall cracking.
Use of high-pressure sprayers may cause sidewall damage.
WARNING!
Driving on a damaged tire is dangerous, as the tire can suddenly fail,
which can lead to an accident and serious personal injury or death.
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12. Storage
Should you need to store tires after removal from a vehicle (as in the case
of winter tires), they should be stored in a cool, dry place. To protect your
tires from damage related to: heat, water, ozone and direct sunlight, it is
suggested you place them in opaque, waterproof containers (e.g., plastic
trash bags).
13. Tubes in Tubeless Tires
Under no circumstances are tubes to be used in Pirelli tires marked
“Tubeless”. This includes tires that have been repaired. If the tire’s
pressure retention ability has been affected, so as to necessitate a tube
being installed, the tire must be replaced.
14. Tire Valves
Whenever new tires are installed on your wheels, new tire valves of the
correct type must be installed. During your routine tire inspection, verify
that all your valves have proper valve caps. Replace as necessary, since
the valve cap is also a seal against pressure loss.
15. Tire Demounting and Mounting
Tire fitting is best left to professionals who have the proper tools and
equipment to perform the task properly and safely. Your tires should be
mounted or demounted, using Tire and Rubber Association of Canada
procedures or the vehicle manufacturers’ recommendations. Your wheels
should be in good, clean condition. Wheels should be inspected for
distortion, dents, cracks, rust and foreign matter, and be replaced as
necessary. NEVER EXCEED 40 PSI WHEN SEATING BEADS.
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WHAT IS NOT COVERED?
This Limited Warranty does not cover the following categories of claims:
Rapid Treadwear: Original equipment tires are not guaranteed to last a
specified number of miles.
Damage from road hazards (not limited to cuts, snags, bruises, impact
breaks, bulges, punctures, stone drills, chips, and scales), fire, theft, or
collision.
Conditions arising from improper tire/vehicle maintenance or use, not
limited to:
•Irregular or excessive treadwear due to: Incorrect inflation; overload-
ing; vehicle misalignment; failure to rotate tires; and poor or defective
mechanical condition of brakes, shocks, and wheels; or other factors
attributable to the vehicle or wheel.
•Any tire which has been run with low air pressure or while flat.
•Damage due to abuse; vandalism; tire alteration; tire spinning; racing;
or other competitive activities.
•Damage, corrosion, or deterioration from using oil-based chemicals,
water-based sealers, balancing substances, or flammable gases.
•Damage from improper use of tire chains.
Tires with the DOT identification number removed or rendered illegible.
Improper mounting, balancing or repair, not limited to:
•Improper tire mounting, or tire/wheel assembly imbalance.
•Damage from incorrect mounting or dismounting of the tire, incorrect
wheel size, water or other material trapped inside the tire during
mounting, or failure to keep the tires balanced.
•Damage resulting from improper repair materials or procedures.
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TIRE SAFETY AND MAINTENANCE INFORMATION
IMPORTANT SAFETY INFORMATION
This manual is not intended to provide proper training or service
procedures for tire mounting, dismounting, balancing, rotation, or repair.
Please leave these tasks to qualified tire service professionals.
mNOTICE!
•Toyo brand tires are designed and built with great care. Any tire, no matter
how well constructed, can fail as a result of punctures, impact damage,
underinflation/overloading or other conditions resulting from use. Tire
failures may create a risk of property damage or personal injury. To obtain
the highest possible performance, tires must be maintained properly.
•Remember, you are ultimately responsible for the tires installed on your
vehicle.
Inflation pressure can decrease by 1 psi for every 10°F temperature drop
Important factors in tire care are:
•Proper inflation pressure
•Proper vehicle loading
•Proper vehicle maintenance
•Regular inspection
•Good driving habits
Refer to your vehicle Owner ’s Manual for additional tire safety and
service advice.
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TIRE PRESSURE BASICS
The combined effect of losing 1 psi per month over several months along
with a 1 psi decrease for every 10°F temperature drop could add up to a
severe “run low” condition; consequently, it is important to check your
tires’ inflation pressure at least once per month. Inflation pressure enables
a tire to support its load; therefore, proper inflation is critical.
HOW TO DETERMINE PROPER TIRE INFLATION PRESSURE
It is impossible to determine whether tires are properly inflated just by
looking at them.
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