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is molded into the sidewall. Tires without this notation are not
recommended for winter driving in regions that experience
winter conditions.
Although All-Season tires are designed to provide reliable performance
in some winter conditions, the use of four winter tires is recommended
for optimal performance. Tires designated for use in severe winter
conditions are marked on at least one sidewall with the letters
“M” and “S” plus a pictograph of a mountain with a snowflake
on it. If such a tire needs to be temporarily replaced with a
tire not so marked, you should immediately drive at a safe
speed to a Michelin dealer to have the spare returned to the
trunk and replaced on your vehicle by another tire with the letters
“M” and “S” and the related pictograph.
Tire Rotation and Replacement
To obtain maximum tread life, you must rotate your tires. You should
rotate your tires every 6,000 to 8,000 miles (10,000 to 12,000 km)
or as specified by your vehicle manufacturer, whichever occurs
more frequently. Check your vehicle owner’s manual for any
recommendations by your vehicle manufacturer. Monthly inspection
for tire wear is recommended. Your tires should be rotated at the first
sign of irregular wear, even if it occurs before 6,000 miles (10,000
km). This is true for all vehicles. When rotating tires with a directional
tread pattern, observe the arrows molded on the sidewall that show the
direction in which the tire should rotate.
Care must be taken to maintain the proper rotation direction. Some Tire
Pressure Monitoring Systems (TPMS) may not recognize that a tire
has been moved to a different position on your vehicle. Make certain
that your TPMS system is reset, if necessary, so as to correctly identify
the location of each tire on your vehicle.
Refer to your vehicle owner’s manual or your vehicle dealer for this
information. Determine whether rotated tires require tire inflation
adjustment, because front and rear position tire pressure may vary
according to the vehicle manufacturer’s specification due to the actual
load on that wheel position. Some vehicles may have tires of different
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Whenever a Repair Is Needed, Immediately See
Your Michelin
® Tire Retailer or, If One Is Not Readily
Available, Another Qualified Tire Professional
If any MICHELIN® tire sustains a puncture, have the tire demounted
and thoroughly inspected by a qualified tire professional for possible
damage that may have occurred. A tread area puncture in any
MICHELIN
® passenger or light truck tire can be repaired if 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 US Tire Manufacturers Association (USTMA)
recommended repair procedures.
Repairs of all tires must be of the combined-plug-and-inside-patch
type. Your MICHELIN tires must be removed from the wheel for
inspection prior to repair. Plug-type repairs made on a tire that remains
mounted on a wheel are improper and can result in an accident. 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 and can
result in an accident. An improperly repaired tire may 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 and result in an accident. Never \
repair a tire with less than 2/32nds of an inch of tread remaining. At this
tread depth, the tire is worn out and must be replaced.
Storage
Tires contain materials to protect their outer surfaces from ozone
and weather checking. As the tire rolls and flexes, those materials
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
checking, 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
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140
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.
One reason why your spare tire should be included in the tire rotation
schedule is that temperatures in a vehicle’s closed trunk, especially
in sunny geographical areas, can become high enough so that, over
a sustained period, they can cause small cracks or other changes to
the properties of a tire stored in the trunk. An accumulation of such
changes can weaken the tire and, especially if the tire is not kept
properly inflated, make it unsafe to use when it is needed.
Proper Tire Mounting
Tire mounting can be dangerous and must be done by professionally
trained persons using proper tools and procedures as specified by the
US Tire Manufacturers Association (USTMA).
Your tires should be mounted on wheels that are the correct size
and type and 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 tire retailer check the wheels before mounting new tires.
Mismatched tires and rims 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, resulting in an accident.
Old valves may leak. When new tubeless tires are mounted, have
new valves of the correct type installed. Tubeless tires must be
mounted only on wheels designed for tubeless tires, i.e., wheels that
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141
have safety humps or ledges. Always utilize valve caps capable of
containing the tire’s inflation, should the valve core leak. The valve
cap is the primary seal against air loss. Each tire and wheel assembly
should be balanced to ensure proper tire and vehicle performance and
to maintain tire warranty coverage. Tires and wheel assemblies that
are not balanced may cause steering difficulties, a bumpy ride, and
irregular tire wear.
Special Mounting Instructions For Self-Supporting
Zero Pressure™ (ZP) Tires
ZP tires can be more difficult to mount than conventional tires. They
should be mounted and demounted only by a properly trained tire
professional. ZP tires can generate a tremendous amount of heat
when run at low or zero pressure. ALWAYS ALLOW A ZP TIRE TO
COOL BEFORE ATTEMPTING TO HANDLE IT. FAILURE TO DO
SO COULD RESULT IN INJURY OR DEATH. Michelin
® ZP tires are
tubeless tires designed to operate in emergency conditions at low or
zero air inflation.
MICHELIN® Self Supporting Zero Pressure™ (Zp) Tires
and Special Sh-M (Symmetric Hump-Modified) Wheels
Some MICHELIN® ZP tires can perform with zero pressure capability
only when mounted on special SH-M wheels. These tires bear the
SH-M designation immediately following the ZP designation on the
sidewall of the tire.
Temporary Type Spare Tires
When using any temporary type spare tire, be sure to follow the vehicle \
manufacturer’s instructions.
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147
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;
overloading; 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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154
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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156
It is important to check your tires using an accurate tire
pressure gauge, which can be purchased at your tire dealer
or auto supply store.
Underinflation can overload tires. Check the inflation pressure every
month, including for the spare tire, to make sure it’s up to specification.
Check it again before long trips or when carrying extra weight.
Look for the manufacturer’s recommended inflation pressure listed
on the Tire Information Placard usually located on your vehicle’s door
edge, door post, glove box, or inside the trunk lid.
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157
USING A TIRE PRESSURE GAUGE
For accuracy, check your inflation pressure with a tire pressure gauge
when tires are cold (for example, after being parked overnight). Driving
heats up tires and causes an inaccurate pressure reading.
To check inflation pressure with a tire pressure gauge:1.
Remove the tire valve cap.
2.
Place the end of the tire pressure gauge over the valve.
3.
Press the tire pressure gauge straight and firmly and take
a reading.
4.
If needed, inflate and recheck the pressure with the tire
pressure gauge.
5.
Replace the valve cap.
RECOMMENDATIONS FOR SAFE TIRE INFLATION •
If you must inflate your tires when they are hot, add 4 pounds per
square inch (4 psi) (28 kPa) above the recommended inflation
pressure specification. Recheck the inflation pressure when the
tires are cold and adjust to the recommended inflation pressure
shown on the vehicle’s Tire Information Placard.
•
Never release air or nitrogen from a hot tire in order to reach
the recommended cold tire pressure. Normal driving causes
tires to run hotter and inflation pressure to increase. If you
release pressure when your tires are hot, you may dangerously
underinflate your tires. If your tires lose more than 1 pound
per square inch (1 psi) per month, the tire, the valve, or the
wheel may be damaged. Consult your authorized Nitto dealer for
an inspection.