1997 GMC Savana Van Owner's Manual - Page 341

1 Long Tripmighway Maintenance Schedule -- Gasoline Engines 50,OV Miles (83 000 km) 0Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage or looseness. Adjust or replace as required. This isa Noise Emission Control Service. Applicable only to vehiclessold in the United States. 0Change automatic transmission fluid and filter if the vehicle's GVWRis over 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 reaches90 O F (32 O 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 you donot use your vehicle under any of these do conditions, thefluid andfilter not require changing. 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) DATE ACTUAL MILEAGE SERVICED B Y DATE ACTUAL MILEAGE SERVICED B Y