1996 GMC Safari Owner's Manual - Page 337

Long Trip/Highway MaintenanceSchedule 75,000 Miles (125 000 km) 0Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0Lubricate chassis components; see footnote # (or every 12 months, whichever occurs first). 0Check readfront axlefluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking.:kd: 0Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: - 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 found in taxi, police or delivery service. - I.f w u do m t LLW ;.our vehicle under any qf these conditions, change thejlltid m d f i l t e r every 30,000 miles (50 000 km). i DATE ACTUAL MILEAGE SERVICED B Y 7-37