1996 GMC Savana Van Owner's Manual - Page 313

I Short TripKity Maintenance Schedule -- Gasoline Engines I 48,000 Miles (80 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). 50,000 Miles (83 000 km) 0Change automatic transmission fluid and filter if the vehicle's GVWR isover 8600 lbs. or 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 (32O C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. 0Lubricate chassis components; see footnote ## (or every 3 months, whichever occurs first). 17 Check axle fluid level and add fluid as needed. 'W DATE ACTUAL MILEAGE SERVICED B Y 7-17