2002 PONTIAC GRAND PRIX spark plugs

6-4 Gasoline Specifications
It is recommended that gasoline meet specifications
which were developed by the American Automobile
Manufacturers Association and endorsed by the
Canadian Vehicle Manufacturers' Association for better
vehicle performance and engine protection. Gasolines
meeting these specifications could provide improved
driveability and emission control system performance
compared to other gasolines.
In Canada, look for
the ªAuto Makers'
Choiceº label on
the pump.
Canada Only
California Fuel
If your vehicle is certified to meet California Emission
Standards (see the underhood emission control label), it is
designed to operate on fuels that meet California
specifications. If this fuel is not available in states adopting
California emissions standards, your vehicle will operate
satisfactorily on fuels meeting federal specifications, but
emission control system performance may be affected. The
malfunction indicator lamp may turn on (see ªMalfunction
Indicator Lampº in the Index) and your vehicle may fail a
smog
-check test. If this occurs, return to your authorized
GM dealer for diagnosis. If it is determined that the
condition is caused by the type of fuel used, repairs may
not be covered by your warranty.
Additives
Some gasolines that are not reformulated for low
emissions may contain an octane
-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT);
ask the attendant where you buy gasoline whether the fuel
contains MMT. General Motors does not recommend the
use of such gasolines. Fuels containing MMT can reduce
the life of spark plugs and the performance of the emission
control system may be affected. The malfunction indicator
lamp may turn on. If this occurs, return to your authorized
GM dealer for service.

6-76
Normal Maintenance Replacement Parts
Engine Air Cleaner/Filter
All Engines GM Part No. 24508572, A1614C*
Engine Oil Filter
All Engines PF47*
Automatic Transmission Filter 24206433*
Spark Plugs
3100 V6 (Code J) 41
-940*
3800 V6 (Code K) 41
-921*
3800 V6 Supercharged (Code 1) NGK Type PTR4B
-15*
Spark Plug Gap .060 inch (1.52 mm)
Windshield Wiper Blade Replacement
Type Shepherd's Hook
Length 22 inches (56 cm)
*AC Delco

part number.

Scheduled Maintenance
7-14
100,000 Miles (166 000 km)
Inspect spark plug wires.
An Emission Control Service.
Replace spark plugs.
An Emission Control Service.
Change automatic transaxle fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90
F (32
C) or higher.
± In hilly or mountainous terrain.
± When doing frequent trailer towing.
± Uses such as found in taxi, police or delivery service.
If you haven't used your vehicle under severe service conditions listed
previously and, therefore, haven't changed your automatic transaxle fluid,
change both the fluid and filter.
150,000 Miles (240 000 km)
Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See ªEngine Coolantº in the Index for what to use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck.
Pressure test the cooling system and pressure cap.
An Emission Control Service.
ACTUAL
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ACTUAL
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