Page 261 of 373

6-5 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.
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work properly.
You should not have to add anything to your fuel.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. Don't use fuel containing
methanol. It can corrode metal parts in your
fuel system and also damage plastic and rubber
parts. That damage wouldn't be covered under
your warranty.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may be hard to
find. Never use leaded gasoline or any other fuel not
recommended in the previous text on fuel. Costly repairs
caused by use of improper fuel wouldn't be covered by
your warranty.
To check on fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you'll be driving.
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Page 335 of 373

6-79
Normal Maintenance
Replacement Parts
The following replacement parts are for
the (LX5) 3.5L V6.
Air Cleaner Element A
-1096C* . . . . . . . . . . . . . . . . .
Passenger Compartment
Air Filter GM Part # 25654414. . . . . . . . . . . . . . .
Engine Oil Filter PF
-2129* . . . . . . . . . . . . . . . . . . . .
Fuel Filter GF
-627* . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Plugs PTR5C
-13* . . . . . . . . . . . . . . . . . . . . . .
(GM Part # 12556183)
Gap: 0.050 inch (1.27 mm)
Windshield Wiper Blades
Type Shepherd's Hook. . . . . . . . . . . . . . . . . . . . . . . .
Length 22.0 inches (56.0 cm). . . . . . . . . . . . . . . . . .
*ACDelco
part number.The following replacement parts are for
the (L47) 4.0L V8.
Air Cleaner Element A
-1096C* . . . . . . . . . . . . . . . . .
Passenger Compartment
Air Filter GM Part # 25654414. . . . . . . . . . . . . . .
Engine Oil Filter PF
-58* . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter GF
-627* . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Plugs PT16EPR
-C13* . . . . . . . . . . . . . . . . . . .
(GM Part # 12561466)
Gap: 0.050 inch (1.27 mm)
Windshield Wiper Blades
Type Shepherd's Hook. . . . . . . . . . . . . . . . . . . . . . . .
Length 22.0 inches (56.0 cm). . . . . . . . . . . . . . . . . .
*ACDelco
part number.
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Page 350 of 373

Scheduled Maintenance
7-15
100,000 Miles (166 000 km)
Replace spark plugs. An Emission Control Service.
Change automatic transaxle fluid and bottom screens if the vehicle is mainly
driven under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90F (32C) 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
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
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