Volvo 2009 V70 Owner's Manual page 245

When replacing worn tires, it is recommended
that the tire be identical in type (radial) and size
as the one being replaced. Using a tire of the
same make (manufacturer) will prevent altera-
tion of the driving characteristics of the vehicle.
WARNING
•
The wheel and tire sizes for your Volvo
are specified to meet stringent stability
and handling requirements. Unap-
proved wheel/tire size combinations
can negatively affect your vehicle's sta-
bility and handling. Approved tire sizes
are shown in the Tire inflation pressure
tables.
•
Any damage caused by installation of
unapproved wheel/tire size combina-
tions will not be covered by your new
vehicle warranty. Volvo assumes no
responsibility for death, injury, or
expenses that may result from such
installations.
06 Maintenance and specifications
New tires
Remember that tires are perishable goods. As
of 2000, the manufacturing week and year
(Department of Transportation (DOT) stamp)
will be indicated with 4 digits (e.g. 1502 means
that the tire illustrated was manufactured dur-
ing week 15 of 2002).
Tire age
•
Tires degrade over time, even when they
are not being used. It is recommended that
tires generally be replaced after 6 years of
normal service. Heat caused by hot cli-
mates, frequent high loading conditions or
Ultra Violet (U.V.) exposure can accelerate
the aging process.
•
You should replace the spare tire when you
replace the other road tires due to the
aging of the spare.
Wheels and tires
•
A tire's age can be determined by the DOT
stamp on the sidewall (see the illustration).
•
A tire with e.g., visible cracks or discolor-
ation should be replaced immediately.
Improving tire economy
•
Maintain correct tire pressure. See the tire
pressure tables on pages 248 and 249.
•
Drive smoothly: avoid fast starts, hard
braking and tire screeching.
•
Tire wear increases with speed.
•
Correct front wheel alignment is very
important.
•
Unbalanced wheels impair tire economy
and driving comfort.
•
Tires must maintain the same direction of
rotation throughout their lifetime.
•
When replacing tires, the tires with the
most tread should be mounted on the rear
wheels to reduce the chance of oversteer
during hard braking.
•
Hitting curbs or potholes can damage the
tires and/or wheels permanently.
06
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