GMC 1998 Safari Owner's Manual page 351

I
Short TripKity Maintenance Schedule
I
0
For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
0
Change automatic transmission fluid and filter if the vehicle is mainly driven
bearings (or at each brake relining, whichever occurs first).
under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches
- In hiily 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, change the fluid
and filter every 50,000 miles (83 000 km).
filter if necessary.
An Emission Control Service. (See footnotef.)
90°F
(32°C) or higher.
0
Inspect air cleaner filter if you are driving in dusty conditions. Replace
48,000
Miles (80 000 km)
0
Change engine oil and filter (or every 3 months, whichever occurs first).
0
Lubricate chassis components (or every 3 months, whichever occurs first).
An Emission Control Service.
(See footnote
#.)
ACTUAL
(Continued)
7-17