GMC 1998 Safari Owner's Manual page 369

Long Trip/Highway Maintenance Schedule
0
Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote
+.)
60,000 Miles
(100
000 km)
0
Change engine oil and filter (or every 12 months, whichever occurs first).
0
Lubricate chassis components (or every 12 months, whichever occurs first).
0
Check readfront axle fluid level and add fluid as needed. Check constant
0
For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
An Emission Control Service.
(See footnote
#.)
velocity joints and axle seals for leaking. (See footnote
**.)
bearings (or at each brake relining, whichever occurs first).
0
Change automatic transmission 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
-
In hilly or mountainous terrain.
-
When doing frequent trailer towing.
-
Uses such as found in taxi, police or delivery service.
90°F
(32°C) or higher.
(Continued)
DATE
I
7-35