1998 GMC Safari Owner's Manual - Page 369

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