2012 OPEL GT fuel

1 1 6 D r iv in g an d o p e ra t io n
Cata ly tic conv erter, exhaust
ga s es
Ca taly tic con v er ter for pe trol e n gin e s
L eade d fuel will damage the catalytic
co n ver t e r a n d p a r t s o f t h e el ec tr o n i c
system, thereby rendering them
inoperative .
High qua lity fuels other tha n those liste d on
page s 11 4 and 1 7 5 (e .g. LRP
1)) could
dam age the catalytic conv erter.Damage to the ca talytic conve rte r or the
vehicle may res ult if the follow ing points
are not obs erve d:
zC onsult a workshop as quickly a s
pos sible in the e ve nt of misfiring,
irregular engine running following a cold
s tart, a s ignificant los s of engine power
or other unusual m alfunctions w hich
may indicate a fault in the ignition
system. If necessary, driving ma y be
continue d for a short time at a low spe ed
and w ith a low engine sp ee d.
Irregular engine running and lack of
powe r when the Ele ctronic S tability
Program (E SP) kicks in are for
ope ra tional re as ons and ca n be
ignored – s ee page 1 19 .zIf unburned fuel enters the catalytic
conv erter, this may res ult in ove rhe ating
and irre parable damage to the c atalytic
conv erter.
You should therefore avoid
unnecessarily long use of the starter
when starting-off, running the tank d ry
(an irre gular fuel s upply w ill lead to
overhea ting) and starting the e ngine by
pushing or towing.
zIf the e mis sion control ind ic ator Z
fla shes, slow down until the flashing
stops and the control indicator is s teady .
Consult a work shop imm ediately.
Emis s ion control indicator Z –
se e page 11 7 .
1)LR P = Lea d Replacement Petrol.

11 7Dr i vi ng and o pe r ati on
Controlling exha ust emissions
The combination of design measures –
mainly in the are a of the fuel inje ction
system a nd ignition system s, and the
cataly tic conv erte r – has minimis ed the
proportion of harmful substance s in the
e xh a u st g a se s, su c h a s c a r b o n m on o xi d e
(CO ), hydrocarbons (CH) and nitrous
oxides (N O
x).Control i nd icator Z for exhaust
Illum inate s when the ignition is s witche d
on a nd during the start attem pt. Goes out
shortly after the eng ine sta rts running.
If it illum inate s while the e ngine is running,
the re is a fa ult in the em ission control
sy ste m. The permitte d e miss ion values
m a y be e xce ede d. Co n su l t a w or k sh o p
immed iately.
Flashing with the engine running indicates
a fault that may damage the catalytic
conv erter. You can continue to drive
without caus ing damage by slowing down
until the fla shing stop s and the control
indica tor is stead y. C onsult a workshop
immed iately.Exhaust g ases
D u r i n g t h e f i r s t dr i ve, s m o ke m a y deve l o p
be cause of wax and oil ev aporating on the
exhaust system . Park the vehicle in the
ope n for a while a fte r the first drive and
av oid inhaling the fum es .
9 Wa r nin g
Engine e xhaus t gase s contain pois onous
carbon monoxide , w hich is colourle ss and
odourle ss and c ould b e fatal if inhale d.
If ex haust gase s p enetrate the v ehicle
inte rior, open the w indows and consult a
workshop im mediate ly.

1 1 8 D r iv in g an d o p e ra t io n
Mai nt ena nc e
Hav e all maintenance work carried out
at the inte rvals specified by Ope l. W e
recom mend that y ou entrust this work
to your O pel Service Partner, who ha s
prope r equipme nt and trained pers onne l
ava ilab le. Elec tronic te sting s ys tems
pe rmit rapid dia gnos is and rem edy of
faults. This way you can b e certain that
all comp onents of the vehicle’s electric al,
injection and ignition sy ste ms operate
correctly , that your ve hicle has a low leve l
of pollutant e mission and that the c atalytic
converte r s yste m will hav e a long se rvice
life.
You are there by m aking an imp ortant
contrib ution towards kee ping the air cle an
and com plia nc e with e mis sions le gis lation.
The S ervice work include s te sting and
adjusting the fuel injection system and the
ignition system . F or this re ason, hav e a ll
Se rvice work carrie d out at the inte rv als
s p eci f i e d by Op e l ( se e ch a p t er " Ser v ic e,
Maintenance " on page 1 65 ).Drive co n trol systems
Ele ctronic Stab ility P rogram (E SP ) ,
Ele ctronic Stab ility Control (E SC)
Elec tronic S tability C ontrol (ES C) is a
component part of the Ele ctronic S tability
Program (ESP).
ESP im proves driving s tability w he n
ne ces s ary in any driving s ituation,
re gardle ss of the ty pe of road surface or
tyre g rip . It also pre vents the d riv e whe els
from spinning.
The system m onitors vehicle movements.
As soon as the ve hicle starts to swe rve
(understeers/oversteers) engine output is
re duce d (the s ound of the e ngine cha ng es )
and individual whe els are spe cifically
braked . This cons iderab ly improve s the
driving stability of the ve hicle on snow and
ice and on wet or s lippe ry road s urfa ces .E SP is ready for operation as s oon a s the
ignition is s witched on and control
indicator v goes out.
The E SP control proces s is disp la yed b y the
flashing of v.
The vehicle is now in a critical s itua tion;
E SP allows you to ke ep control of the
vehicle a nd reminds you to m atch your
spee d to the road conditions.
9 Wa r nin g
Do not le t this spe cial safety feature
tempt you into ta king risk s w he n driving.
Tra ffic safe ty can only b e ac hie ve d by
adopting a re spons ible d riv ing sty le .

12 7Dr i vi ng and o pe r ati on
After having che cke d the ty re p re ssures,
tighten the valve caps.
Incorrect ty re pre ssures will imp air safe ty,
vehic le handling, com fort and fuel
e conomy and will incre ase tyre we ar.
If the pressure is too low, this ca n result
in conside rable tyre warm-up and inte rnal
dam age, leading to tre ad s ep aration a nd
e ven to ty re blo w-o u t at h igh s pee ds .
Hidde n tyre damag e is not eliminate d by
adjus ting ty re p re s sure.Ty re conditi on, wheel condition
Driv e over e dges slowly and at right angle s
if poss ible. Driving over sharp e dge s can
cause conceale d da mage to tyres and
whee ls that only be come s noticeable later.
Do not trap tyres whe n parking.
Check tyres re gularly for dama ge (foreign
bo dies , pu n ctu res , cu ts , crack s, bu lg es in
side walls). Chec k whee ls for damage . In
the e vent of dam age or abnorm al we ar,
cons ult a works hop.Tread depth
C he ck tre ad de pth at re gula r inte rvals .
If the re is more wea r at the front than the
re ar, s wap round front whe els and re ar
whe els.
C orre ct the ty re pre ssure.
Tyre s should be replac ed for safety
re asons if tre ad de pth drops b elow 2-3 mm
(4 mm for w inte r tyres).
9 Wa r ning
Inc orre ct tyre pressure can le ad to tyre
ru p t u r e .
9 Warning
Dama ge m ay le ad to ty re blow-out.

14 5Self-help, vehicle care
Some functions are protecte d by se ve ra l
f u se s.
No. Circuit Rat ing
1
-
2
Bod y C ontrol Module 50 A
3
Bod y C ontrol Module 2 40 A
4
Cran k 3 0 A
5
Bod y C ontrol Module 3 30 A
6
-
7
Heate d rea r window 2 0 A
8
Cooling fa n 6 0 ANo. Ci rcuit Rating
9
Fuel pump 15 A
10
-
11
L uggage compartme nt 5 A
12
L uggage compartme nt 25 A
13
-
14
E le ctric e xterior mirrors 5 A
15
Sp are 10 A
16
-No. Circui t Rat ing
17
Air cond itioning 10 A
18
Data link connector 1 5 A
19
Spare 2 0 A
20
-
21
Ou t let 2 0 A
22
-
23
Emissions 10 A
24
Vacuum pum p 20 A
25
-
26
Ele ct ric se at 2 0 A
27
-
28
Engine Control M od ule,
tra nsmission15 A
29
Engine Control M od ule 20 A
30
Turbo, Cam phase r 1 0 A
31
-
32
Reve rsing la mp 1 0 A
33
Ign ition c oils 1 5 A
34
ABS 10 A
35
Fo g la m p s 1 5 A

166 Service, maintenanc e
Euro pean service schedule
(Opel GT - Z 20 NHH)
⊕Add it iona l o per at ions.
o Und er extreme o peratin g cond itions a nd if req uired by country-sp ecific co nditio ns, the in terva ls are red uced.
S ervice operations
by y ear 1)
km ( x 1000)1)
miles ( x 1000)1)
1)Wh ic h e v e r o cc u r s fi rs t.
1
30
202
60
403
90
604
120
805
150
1006
180
120
C ontrols , lighting , s igna lling equipme nt and airbags : v isual che ck
s tee ring lock and ignition lock: che ckxxxxxx
Re mote control batte ries: re place Eve ry 2 y ears
Windsc reen w ipers, windscreen washer system: check, correct x x x x x x
C oolant le ve l and antifree ze: check, correct
Hoses: check for tightness and secure seatingxxxxxx
Brak e fluid le vel: check, correct x x x
Batte ry te rmina ls: check for sec ure connections a nd battery ey e x x x x x x
Pollen filter: replacexxx
oM o re o f ten f o r wh en du s t, s an d o r po llen is in th e air A gree me nt w ith c us to mer
Air cleaner element: replace
Every 4 yea rs/60 000 k m/40 000 miles
⊕Spark plugs: replace Every 4 yea rs/60 000 k m/40 000 miles
Ribb ed V -be lt: vis ual check x x x
⊕Re place Every 10 years/150 000 km/100 000 miles
Powe r ste ering s ys tem: check for leaks . F luid le vel: check, correct x x x x x x
E ngine oil and oil filter: replac e
2)
2)En gine oil life monitor may indica te a n earlier engine o il an d oil filter ch ang e is neces sary. See p ag es 63, 69, 15 1.
xxxxxx
Parking b ra ke: check and adjus t
W hee l mounting and s us pe ns ion front and re ar, b rake line s, brake pres s ure
hoses, fuel lines a nd exhaust system: visual checkxxx

168 Service, maintenanc e
International service schedule
(Opel GT - Z 20 NHH)
⊕Add it iona l o per at ions.
o Und er extreme o peratin g cond itions a nd if req uired by country-sp ecific co nditio ns, the in terva ls are red uced.
S ervice operations
by year 1)
k m ( x 1000)1)
miles ( x 10 0 0)1)
1)Wh ic h e v e r o cc u r s fi rs t.
15
101
30
2045
302
60
4075
503
90
60
C ontrols , lighting , s igna lling equipme nt and airbags : v isual che ck
s tee ring lock and ignition lock: che ckxx xx xx
Re mote control batte ries: re place E very 2 ye ars
Windsc reen w ipers, windscreen washer system: check, correct x x x x x x
C oolant le ve l and antifree ze: check, correct
Hoses: check for tightness and secure seatingAnnually
Brak e fluid le vel: check, correct x x
Battery termina ls: check for sec ure connections a nd battery ey e Annually
Pollen filter: replace Eve ry 2 y ears /6 0 00 0 km/ 4 0 0 0 0 miles
oMore often for when dust, sand or pollen is in the air Annually/15 000 km/10 000 m iles
Air cleaner element: replace Every 4 years/60 000 km/40 000 miles
oMore often for when dust or sand is in the air Annually/15 000 km/10 000 m iles
⊕S park plugs : re place Eve ry 4 y ears /6 0 00 0 km/ 4 0 0 0 0 miles
R i bb ed V - be l t : vi s u a l ch eck Eve r y 2 y ea r s /6 0 00 0 km / 4 0 0 0 0 m i l es
⊕Re place Every 10 years/150 000 km /100 000 miles
Power steering system: check for leaks. Fluid level: check, correct Annually
E ngine oil and oil filter: replac e
2)
2)En gine oil life monitor may indica te a n earlier engine o il an d oil filter ch ang e is neces sary. See p ag es 63, 69, 15 1.
xx xx xx
Parking b ra ke: check and adjus t
W hee l mounting and s us pe ns ion front and re ar, b rake line s, brake pres s ure
hoses, fuel lines a nd exhaust system: visual checkEvery 2 years/60 000 km/40 000 miles

170 Service, maintenanc e
Additional servicing
Add itional op era tions ⊕
Additional w ork is work tha t is not req uire d
e very se rvice but can be pe rforme d in
conjunction with a re gular service .
Time allowances for such w ork are not
included in the scope of re gular se rvice s
and will b e charge d for add itionally. It is
more economic if these operations are
pe rforme d as part of a sc he duled se rvice
than having them performe d s eparate ly.
Severe operating conditions o
O perating conditions are clas sifie d as
severe w hen one or m ore of the following
occurs frequently:
zcold starts ,
zstop and go,
ztraile r/carav an towing ,
zgradients and/or high altitudes ,
zpoor road surface s,
zsand a nd dust,
zextreme temperature fluctuations.
Police v ehicles , ta xis and driving s chool
ve hic le s are also cla ss ifie d as ope rating
under sev ere conditions.
U n d e r s e v e r e o p e ra t in g c o nd it i o n s , i t m a y
be nece ss ary to ha ve certain s che duled
service work done more fre quently tha n the
s cheduled inte rvals .
F or exa mple, if f ue l is u se d th at do e s no t
comply with required sta nda rd s, the fuel
filter ma y need m ore frequent draining or
rep la ceme nt and it may also be nece s sary
to change other components more often
(e. g. s park p lugs ).It i s r eco m m en ded t o s eek t e ch n ic a l a dvi ce
on the servicing requirements dependent
on the spe cific ope rating conditions of your
veh icle .
Recommend ed fluid s, and
lu b r ic a n t s
Only use prod ucts that have be en te ste d
and approved . Damage res ulting from the
us e of non-approve d m aterials will not be
covere d by the warranty.
Checking and topp ing up flui ds
se e p age 15 2 .
En g in e oi l
Engine oil is ide ntifie d by its q ua lity and
also its v iscos ity. Q ua lity is more im porta nt
than vis cosity whe n se lecting which engine
oil to us e.
Engine o il quality
E urope an s pe cificat ions
O p el e ng in e o il m e et s cl a s si f i ca t i o n G M - LL -
A-025 and is therefore suita ble for petrol
eng ines.
I nt erna tional s pe cific ations
The above spe cification is v alid only if the
service inte rval is re duced to that shown for
the inte rna tional s erv ice s chedule - s ee
pag e 1 6 5.
Topp ing up e ngine oil
O ils of diffe re nt m anufacturers and bra nds
can b e m ix ed as long as you comply with
the s pecified e ng ine oil criteria (q uality and
vis co s ity ).
N ot eve r y e n g i ne o i l a va il a bl e o n t h e
m a rk et m ee ts t h e qu a l i t y r e qui r e m en t s ,
alway s check the req uire d s pecification
and ra ting is m arked on the containe r.
If e ngine oil of the required quality is not
av ailable, a max imum of 1 litre of AC EA
A3/B4 or A3/B3 grade ma y be used (only
once betwe en e ach oil change ). The
viscosity should be of the correct rating.
9 Warning
O perating m aterials are haz ardous and
mus t be hand led w ith the appropriate
le vel of ca re . I f cons ume d, s ee k me dical
attention immediately. Do not inhale
fumes and avoid s kin contact. K ee p out
of rea ch of childre n. Do not allow
ope ra ting materials to contaminate the
sewag e system, surface water, ground
water or soil. Dispose of empty containers
prope rly . Alway s b ear in m ind that
ope ra ting materials are hazardous to
your hea lth.
GM-LL-A-025: Petrol engines
G M G e n e ra l M o t o rs E u ro p e
LL Lo n g l i f e
A Engine oil quality
sp ecification
02 5 Va lid ity index
ACEA-A3: Petrol engines