1998 OLDSMOBILE SILHOUETTE spark plugs replace

Vehicle Dimensions - Regular
Wheel Base
Length ................. 187.4 inches (475.9 cm)
Width
...................... 72 inches (183 cm)
Height
................... 67.4 inches (1 7 1.2 cm)
Wheelbase
................ 11 2 inches (284.5 cm)
Front Tread Width
......... 6 1.5 inches (1 56.2 cm)
Rear Tread Width
.......... 63.3 inches (1 60.8 cm)
Vehicle Dimensions - Extended
Wheel Base
Length ................. 20 1.4 inches (5 1 1.5 cm)
Width
................... 72.2 inches (183.4 cm)
Height
................... 68.1 inches (172.9 cm)
Wheelbase
................ 120 inches (304.7 cm)
Front Tread Width
......... 6 1.5 inches (156.2 cm)
Rear Tread Width
.......... 63.3 inches ( 160.8 cm)
Normal Maintenance
Replacement Parts
Air Cleaner Filter ............. AC Type A- 1208C
Passenger Compartment Air Cleaner Filter
(2) ............... 52470574
Engine Oil Filter
........................ PF47
Spark Plugs
................... AC Type 4 1-940
Gap: 0.060 inches (1.5 mm)
Windshield Wiper Blades
Length
..................... 24 inches (60 cm)
Type
......................... Shepard’s Hook
Length
.................... 16 inches (40.6 cm)
Type
......................... Shepard’s Hook
Backglass Wiper Blade
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same.
If the air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant is used.
If
you’re not sure, ask your retailer.
6-65
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1 Short Trip/City Maintenance Schedule I
POS,OOO Miles (166 000 km)
Inspect spark plug wires. An Emission Control Service.
0 Replace spark plugs. An Emission Control Service.
0 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 O 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 do not use your vehicle under any of these conditions, the fluid and
filter
do not require changing.
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See “Engine Coolant” in the Index for what to
use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test
cooling system and pressure cap.
An Emission Control Service.
DATE
I MILEAGE ACTUAL I SERVICEDBY: I
DATE 1
MILEAGE
ACTUAL SERVICED BY:
7-20
ProCarManuals.com

I Long Tripmighway Maintenance Schedule
100,000 Miles (I66 000 km)
0 Inspect spark plug wires.
0 Replace spark plugs.
0 Change automatic transaxle fluid and filter if the vehicle is mainly driven
An Emission Control Service.
An Emission Control Service.
under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
- In hilly or mountainous terrain.
(32°C) or
higher.
I DATE I
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these conditions, the fluid and
filter do not require changing.
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See “Engine Coolant’’ 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.
MILEAGE
7-28
ProCarManuals.com