2012 OPEL GT rims

1 2 6 D r iv in g an d o p e ra t io n
F itting ne w tyre s
Please fit tyre s in pairs. Se ts would be eve n
be tte r. Re place tyre s w ith:
zth e s a m e si z e ,
zthe same design,
zthe s ame make ,
zthe same tre ad pattern on one ax le.
F it direc tional tyres such that the y roll in the
direc tion of trave l. The rolling d ire ction is
indicated by a s ymbol (e .g. a n arrow) on
the s ide wall.
Tyre s fitte d opposing the rolling direction
(e. g. whe n a tyre is chang ed) s hould be
refitted a s s oon as poss ible. This is the only
way to obtain full bene fit from the de sign
properties of the tyre.
O bse rve legal re quireme nts w he n
disposing of ty res.Some brands of tyres have a b eade d
edge for alloy whe els to protect against
damage . If a whee l trim is use d on s tee l
whee ls with be ade d-edg e ty re s, the
following proce dure mus t be followe d:
zW hee l trims and ty res that are a pproved
for the re spe ctive ve hicle and c om ply
with all of the rele vant whee l and tyre
combination re quireme nts mus t b e use d.
zIf the whe el trims and ty re s use d are not
approve d, the tyre s must not have a
be ade d ed ge.
Ty re pre ssure
Ch eck t yr e p r es su r e s w he n co l d, a t l ea s t
eve ry 1 4 days and prior to any long
journey .Tyre pres sure s – s ee p age 18 0 and the ty re
and load ing information labe l on the
B-pillar, v isible with the drive r’ s d oor ope n.
Hav e ty re and loa ding information labe l
re placed afte r changing to a diffe rent tyre
size.
Do not re duce tyre pressure w he n the tyres
are warm. Otherw ise the pressure m ay
drop be low the permis sible minimum when
the tyres cool down.
9 Warning
Use of unsuitab le tyre s or whee l trim s
could le ad to s udden pre ss ure los s and
there by a ccidents .

1 2 8 D r iv in g an d o p e ra t io n
The le gally permis sible minimum tre ad
de pth (1.6 m m) has bee n reache d whe n
the tre ad has worn down as far as one of
the w ear indicators (TWI
1)). A numbe r of
we ar indicators a re s pace d at e qual
intervals around the ty re within the tre ad.
Their pos ition is indicate d by markings on
the ty re side wall. Gene ral i nformati on
zThe danger of aq uap laning is gre ater if
the ty res are worn.
zTyres age, even if they a re used only very
little or not at all.
zNever fit used tyres the prev ious history
and use of w hich y ou do not know.
zSo as not to im pair brake cooling , use
only whe el trims app rov ed for us e on
your vehicle. Tyre d esigna tions
Me aning s:
e.g. 24 5/ 4 5 R 18 1 00 W
S pee d code lette rs:
1)TW I = Tread Wea r Indi c at or .
245=Tyre width in mm
45= Aspect ratio
(tyre height to ty re width) in %
R= Be lt type : Rad ial
18= Rim diame ter in inches
100= L oad inde x
e.g.: 100 corresponds to 800 kg
W=Speed code
QUp to 160 km/h (100 mph)
SUp to 180 km/h (112 mph)
TUp to 190 km/h (118 mph)
HUp to 210 km/h (130 mph)
VUp to 240 km/h (150 mph)
WUp to 270 km/h (168 mph)

12 9Dr i vi ng and o pe r ati on
Winter tyres 3
F or note s on fitting new tyres –
s ee page 1 26 .
Se e page 17 9 for res tric tions .
W i nt e r t yr e s i m p r o ve sa f e ty a t
t em p er a t u r es be l o w 7 °C a n d s ho u l d
therefore be fitted on all the wheels.
T h e d es i g n o f su m m er t yr e s m ea ns t h ey
have limited qualitie s for winte r driving.
If the maxim um perm issible speed for the
winter ty re s is le ss than that of the ve hicle,
a notice ind icating the ma ximum
pe rmissible spe ed for the tyre s must be
affixe d within the drive r’s field of v is ion
1).
W hee l t rims
If t h e w h ee l t r i m s a n d t yr e s u s ed a r e n o t
approve d, m ake sure that the ty res do not
have a be ade d e dge – s ee page 1 26 .Ty r e c h a i n s 3
Restric tions and furthe r inform ation -
se e p age 17 9 .
Ty re c hains are only pe rm itte d on the
driven whe els (rear axle). The y m us t be
fitte d to the ty res symme trically in orde r
to achieve a c once ntric fit.
Alw ays use fine-linked chains that ad d no
more than 11 m m to the ty re tread and the
inboard side s (including chain lock).W hee l trim on ste el whee ls could come into
contact with parts of the cha in and be
dam aged . Re move the whe el trim.
T yr e cha in s may o n ly be u s ed at sp ee ds u p
to 50 km/h (30 mph) or up to the tyre chain
ma nufacturer’s re comme nde d m aximum
s pee d, whiche ver is lowe r.
W hen trave lling on roa ds that are fre e of
s now , they may be us e d for brief pe riods
only since they are subject to rap id we ar on
a hard road and m ay s nap.
Avoid s harp turns, bumps and holes and
do not lock the whee ls when brak ing, to
av oid damaging the tyre chains.
Re -tighte n the chains after d riv ing for
app rox . 1 km (0 .6 mile s). If, at any time you
hea r or suspect that the chains are
contacting the vehicle, stop and re-tighten
the chains.
Alway s re ad the ins tructions s upplied with
the tyre cha ins.
C orre ct the ty re pre ssure b efore starting-
off. Se e page 1 80 .
1)Va r ies f ro m c ount ry t o c ount r y o n ac c ount of
nat i ona l r egul a ti ons .