1997 GMC Safari Owner's Manual - Page 338

I I ! 1 Short Trip/City MaintenanceSchedule I I I 30,000 Miles (50 000 km) (Continued) - In hilly or mountainous terrain. 33,000 Miles (55000 km) 0Change engine oil and filter (or every 3 months, whicheveroccurs first). An Emission Control Sewice. When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. - 0Lubricate chassis components (or every 3 months, whichever occursfirst). (See footnote #.) 0Check readfront axle fluid level and add fluid as needed.Check constant velocity joints and axle sealsfor leakmg. (See footnote * *.) If you do not use your vehicle under any of these conditions, change the fluid and filter every 30,000 miles (50 000 km). 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) DATE MILEAGE ACTUAL SERVICED BY: DATE MILEAGE ACTUAL SERVICED BY: I 7-14