Volvo 2013 XC70 - Manual (Page 297)

08 Wheels and tires
General information
08
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295
at 6-year intervals, even if it has never been
used.
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 discoloration
should be replaced immediately.
Tread wear indicator
G021829
The tires have wear indicator strips running
across or parallel to the tread. The letters TWI
are printed on the side of the tire. When
approximately 1/16" (1.6 mm) is left on the
tread, these strips become visible and indicate
that the tire should be replaced. Tires with less
than 1/16" (1.6 mm) tread offer very poor trac-
tion.
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.
Improving tire economy
• Maintain correct tire pressure. See the tire
inflation table on page 299.
• 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.
Summer and winter tires
G021778
The arrows shows the direction of rotation of the
tire
• When switching between summer and
winter tires, mark the tires to indicate
where they were mounted on the car, e.g.,
LF = left front, RR = right rear
• Tires with tread designed to roll in only one
direction are marked with an arrow on the
sidewall.
• Incorrectly mounted tires impair the car's
braking properties and ability to force
aside rain, snow and slush.
• The tires with the most tread should always
be at the rear (to reduce the risk of skid-
ding).
• Contact a Volvo workshop if you are
unsure about the tread depth.