1997 GMC Safari Owner's Manual - Page 356

Long Trip/Highway Maintenance Schedule 15,000 Miles (25 000 km) (Continued) - 12 months, whichever occursfirst). An Emission Control Service. 22,500 Miles (37500 km) 0Change engine oil and filter (or every IJ Lubricate chassis components (or every 12 months, whichever occursfirst). (See footnote#.) 0Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and **.) axle seals for leaking. (See footnote IJRotate tires. See '!Tire Inspection and Rotation'' in the Index for proper rotation pattern and additional information. (See footnote +.) DATE ACTUAL MILEAGE SERVICED B Y In hilly or mbuntainous terrain. - When doing frequent trailer towing. - Uses such as foundin taxi, police or delivery service. If you donot use your vehicle under any o these f 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 ACTUAL MILEAGE SERVICED BY: a 7-32