1998 Chevrolet Tracker Owner's Manual - Page 254
1998 Chevrolet Tracker Manual
Page 254 highlights
Automatic Transmission Fluid When to Check and Change A good time to check your automatic transmission fluid level is when the engine oil changed. is Change both the fluid and filter every 15,000 miles (25 000 km) 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 C) or higher. O 0 In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, police or delivery service. 0 3. Pull out the filter and replace it. 4. Replace the cover and the screws. If you do not use your vehicle under any these of conditions, change the fluid and filter every 100,000miles (166 000 km). See "Scheduled Maintenance Services" in the Index. 6-17