Porsche 944 S2 Owner's Manual page 79

Tires/Wheels
The original equipment tires
and wheel rims
on
vour Porsche
comply wtth all applicable
l-ederal Molor
Vehicle Safely Standards.
For
your
driving
safety remember the follow_
rngt
.
Wheel rims and wheei bolts are
matcherj
to fit your
porsche.
r
lf
you
intend to
use other than
original
equipment
wheels, be sure
that
they
con_
foam
10
Porsche specilicatjons
for
your
model.
r
The use ofwheel rimsandwheet
botts that
do not
meet
specifications of the orioinat
factory insta
ed equipment
wr
affeci
the
safe operation of
your vehicle.
r
Before you plan on exchanging wheels,
or
winter
tires
already mounted
on
wheel
rims,
consult your
porsche dealer. He
has
the techntcal information
necessary to
ad_
vrse
you which
wheel nms
and
wheel
bOlts
are
compatible with the
original
factory
installations.
Tire pressures
tion
pressure
means: when a car
has not
been
driv6n for at
least 3 hours or
less than
1
mile.
Never let any
air out of warm tires
to
meel cold tire
pressure
specilications.
Tire traclion
Tire Life
Tjre life
depends on
various
factors,
i.e.,
roads, traffic
and weather conditions.
driv_
ing habils.
type of
tires and tire
care.
lnspect your tires
at
least every
2.OOO
.niles
or
3.000 km for
wear and
damage.
lf
you
notice
uneven or
substantial
wea-r, wheels
might
need alignment
or
tires
should
be
balanced
or
replaced.
lires
must always remain on same side
o,
vehicle.
After changing,
adjust tire
pressure and
tor-
que wheel nuts
diagona y to
94
f
bs
(j30
Nm)
(see
'Changing
wheels,,).
The
supposiiion that tire durabitity and
per-
formance
are rmmune
to
the effeits
ot
slor_
age and age is
unfouded. Chemical
ad-
ditives, which
make the rubber elastic.
tose
their eltecliveness
rn lhe
course o, time
and
the
rubber
becomes
britfle and
cracks.
Therefore.
the
tires. especia y
the
co
aps-
ible
spare
tire.
should
from
time
to
time
undergo
a visuat check. To
accomplish
this,
pump
up the collapsible
spare tire.
Under no
circumstances should tires older
than
6 years
be
used on your
porsche. The
age
of
the tire
can be
obtained lrom
the
"DOT
code number. lf. tor example, the
tast
lhree
numbers read
129. then the
tire
was
produced in the
12th week
of
1988.
Tire weal
The original
equipment tires on
your
Porsche
have built-in wear indicators.
They
are molded
into
the
bottom of
the
tread
grooves and
wi
appear
as
approximately
r,
in (12 mm) bands
when
lhe
lire
tread
depth
is down to
%6
of an in (1.6
mm).
When the
indicators
appear
in two or
more
adiacent grooves. it
is time to
replace the
tires.
We recommend, however,
thal vou
do
not let the tires
wear
down to this ;xtent.
Worn tires
cannot grip the
road
surtace
properly, and
are even less
effective on wet
roads.
ln the United
Slates.
state
laws may govern
rne mtntmum tread depth permissible.
Fol_
low
all such laws
lf you notice
that
tires
are
wearing
unevenly,
consult your
Porsche dealer.
Uneven wear
may not
always
be
due
to
improper
wheel
a
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(l
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1,
ai
a,
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a
t)
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t
a
a
t
a
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t
WARNING
Do nol
drive with worn
lires
or tires
show_
ing
cuts or
bruises
as they
may lead to
sudden deflation