1998 Chevrolet Prizm Owner's Manual - Page 310

I Short TripKity Maintenance Schedule I 90,000 Miles (150 000 km) (Continued) 0 Rotate tires. See "Tire Inspection and Rotation" the Index for proper in +.) rotation pattern and additional information. (See footnote 0 Drain, flush and refill cooling system (or every months, whichever occurs 24 first). See "Engine Coolant'' in the Index for what to use. Inspect hoses. Clean radiator, condenser, pressurecap and neck. Pressure test cooling system and pressure cap. An Emission Control Sewice. (See footnote"f) Change manual transaxle fluid every 30,000 miles (50 000 km) only if your vehicle is used to tow a trailer. 0 Change automatic transaxle and differential fluid every15,000 miles (25 000 km) if the vehicleis mainly driven underone or moreof these conditions: - In heavy city traffic wherethe outside temperature regularly reaches 90 O (32O C) or higher. F - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, check the fluid. 7-24