spark plugs Alfa Romeo GT 2007 Owner handbook (in English)

GETTING TO KNOW YOUR CAR
167
The devices used to reduce diesel fuel en-
gine emissions are:
– oxidising catalyst;
– exhaust gas recirculation system (E. G. R.);
– diesel particulate filter (DPF). DPF (Diesel Particulate Filter)
(for versions/ markets where
applicable)
The Diesel Particulate Filter is a mechani-
cal filter, integral with the exhaust system,
that physically traps particulates present in
the exhaust gases of Diesel engines.
The diesel particular filter has been adopt-
ed to eliminate almost totally particulates in
compliance with current / future law regu-
lations.
During normal use of the car, the engine
control unit records a set of data (e.g.: trav-
el time, type of route, temperatures, etc.)
and it will then calculate how much partic-
ulates has been trapped by the filter.
Since this filter physically traps particulates,
it shall be cleaned (reclaimed) at regular in-
tervals by burning carbon particles.
ENVIRONMENTAL
PROTECTION
The devices used to reduce petrol engine
emissions are:
– trivalent catalytic converter (catalytic si-
lencer);
– Lambda sensors;
– anti-evaporation system.
If one or more spark plugs are discon-
nected, do not run the engine, even for a
test.During normal service the
catalyst and the diesel par-
ticulate filter (DPF) reach
high temperatures. Do not there-
fore park the car over inflammable
materials (grass, dry leaves, pine
needles, etc.): fire hazard.

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CAR MAINTENANCE
218
20 40 60 80 100 120 140 160 180Thousands of km
Check and if necessary top up the Selespeed automatic transmission oil level
(2.0 JTS versions)
Sight check for conditions of timing gear drive toothed belt (JTD versions)
Check emissions/smoke at the exhaust (JTD versions)
Check operation of engine control system (through diagnosis socket)
Check mechanical transmission oil level
Change counter-rotating shaft drive belt
Change timing gear drive belt (petrol versions) (*)
Change timing gear drive belt (JTD versions) (*)
Change accessory poly-V drive belt
Change spark plugs (petrol versions)
Change engine oil and oil filter (petrol versions) (or every 24 months)
Change engine oil and oil filter (diesel with DPF versions)(**)
(or every 24 months)
Change brake fluid (or every 24 months)
Change fuel filter (JTD versions)
Change pollen filter (or every year)
(*) Regardless of the km covered, the timing belt shall be replaced every 4 years for particularly demanding use (cold climates, driving in the city, idling for a long time) or in any case every 5 years.
(**) Engine oil and oil filter shall actually be changed according to the conditions of use of the car and it is indicated by the relevant warning light or message (where provided) on the instrument panel
(see “Warning lights and messages” paragraph).

2.0 JTS
2.0 JTS
Selespeed
937A1000
Otto
4 in line
83 x 91
1970
11.5 : 1
121
165
6400
206
21
3250
NGK PFR6B
NGK BKR6EKPA
Unleaded
petrol
95 RON2.0 JTS (**)
932A2000
Otto
4 in line
83 x 91
1970
11.5 : 1
119
163
6400
201
20
3250
NGK PFR6B
NGK BKR6EKPA
Unleaded
petrol
95 RONJTD16V
937A5000
Diesel
4 in line
82 x 90.4
1910
17.5 : 1
110
150
4000
305
31
2000
Diesel fuel for motor
vehicles
(Specification EN 590) 3.2
V6
936A000
Otto
6 in 60° V
93 x 78
3179
10 : 1
176,5
240
6200
300
30.6
4800
NGK PFR6B
Unleaded
petrol
95 RON 1.8 T. SPARK
AR32205
Otto
4 in line
82.7
1747
11.5 : 1
103
140
6500
163
16.6
3900
NGK PFR6B+
NGK PMR7A
NGK BKR6EKPA+
NGK PMR7A
Unleaded
petrol
95 RON
TECHNICAL SPECIFICATIONS
242
ENGINE
(*) There are two different spark plugs for each cylinder, one per type (**) For versions/markets where applicable
To change plugs contact Alfa Romeo Authorized Services.
Code type
Cycle
Number and position of cylinders
Piston bore and stroke mm
Total displacement cm3
Compression ratio
Maximum horsepower (EEC):
kW
HP
at rpm
Maximum torque (EEC):
Nm
kgm
at rpm
Spark plugs (*)
Fuel