Mazda 2005 mx-5 miata Manual page 248

Maintenance and Care
Owner Maintenance
Use the temporary only until the
conventional tire is repaired, which should
be as soon as possible.
Maintain its pressure at 420 kPa (4.2 kgf/
2
cm or bar, 60 psi).
CAUTION
Don't use your temporary spare tire
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rim with a snow tire or a
conventional tire. Neither will
properly fit and could damage both
tire and rim.
The temporary spare tire has a tread
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life of up to 5,000 km (3,000 miles),
depending on road conditions and
driving habits.
The temporary spare tire is for
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limited use, however, if the tread
wear solid-band indicator appears,
replace the tire with the same type of
temporary spare (page 8-31).
qReplacing a Wheel
WARNING
Using a Wrong-Sized Wheel:
Using a wrong-sized wheel is
dangerous. Braking and handling
could be affected, leading to loss of
control and an accident. Always use
wheels of the correct size on your
vehicle.
8-32
CAUTION
A wrong-sized wheel may adversely
affect:
Tire fit
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Wheel and bearing life
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Ground clearance
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Snow-chain clearance
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Speedometer calibration
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Headlight aim
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Bumper height
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Limited-Slip Differential System
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When replacing a wheel, make sure the
new one is the same as the original factory
wheel in diameter, rim width, and offset.
Proper tire balancing provides the best
riding comfort and helps reduce tread
wear. Out-of-balance tires can cause
vibration and uneven wear, such as
cupping and flat spots.