1998 GMC Safari Owner's Manual - Page 348

Short Wip/City Maintenance Schedule 30,000 Miles (50 000 km) (Continued) 0 For Two-Wheel-Drive vehicles only: Clean and repack front wheel the bearings (or at each brake relining, whichever occurs first). 0 Replace fuel filter. An Emission Control Service. (See footnote?.) 0 Replace air cleaner filter. An Emission Control Service. Change automatic transmission fluid and filterthe vehicle is mainly driven if under one or more these conditions: of - In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as foundin taxi, police or delivery service. I you do not use your vehicle under any these conditions, change the f of fluid andfilter every 50,000 miles (83 000 km). 0 Rotate tires. See "Tire Inspection and Rotation" in the Index proper for rotation pattern and additional information. (See footnote +.) 7-14