Oldsmobile 1995 Silhouette Owner's Manual page 326

Maintenance Schedule
I
Schedule I Definition
I
Follow Maintenance Schedule I if any one of these is
true for your vehicle:
0
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
0
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
0
Most trips are through dusty areas.
0
You frequently tow a trailer or use a carrier on top
0.f
your vehicle.
Schedule I should also be followed if the vehicle is used
for delivery service, police, taxi, or other commercial
application.
Schedule I Intervals
Every 3,000 Miles (5 000 km) or 3 Months
Engine Oil and Filter Change
Every 6,000 Miles (10 000 km) or 6 months
Chassis Lubrication
At 6,000 Miles (10 000 km)
-
Then Every
12,000 Miles (25 000 km)
Tire Rotation
Every 15,000 Miles (25 000 km)
Air Cleaner Filter Inspection,
if driving in dusty conditions
Every 30,000 Miles (50 000 km)
Air Cleaner Filter Replacement
Spark Plug Replacement
Cooling System Service (or every 24 months)
Automatic Transaxle Service (severe conditions)
Engine Accessory Drive Belt Inspection
Spark Plug Wire Inspection
Exhaust Gas Recirculation (EGR) System Inspection
(or every 60 months) (3.1L Code D engine only)
Engine Timing and Distributor Check (or every
60 months) (3.1 L Code D engine only)
Fuel Tank, Cap and Lines Inspection (or every 60 months)
Every 50,000 Miles (83 000 km)
Every 60,000 Miles (100 000 km)
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