1997 Oldsmobile Achieva Owner's Manual - Page 249

Automatic Transaxle Fluid When to Check and Change A good time tocheck your automatic transaxle fluid level is when the engine oil is changed. Change both the fluidand filter every50,000 miles (83 000 km) if the vehicle ismainly driven under one or more of these conditions: 0 How to Check Because this operation can be a little difficult, you may choose to have this done at your Oldsmobile retail facility ServiceDepartment. If you do it yourself, be sure to follow all the instructions here, or you could geta false reading on the dipstick. In heavy city traffic where the outside temperature regularly reaches90°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 NOTICE: Too much or too little fluid can damage your transaxle. Too much can mean that some of the fluid could come out and fall on hotengine parts or exhaust system parts, starting a fire. Be sure to get an accurate reading ifyou check your transaxle fluid. Wait at least 30 minutes before checking the transaxle fluid level if you have been driving: 0 0 0 0 If you do not use your vehicle under any of these conditions, the fluid filter do not require changing. and See "Scheduled Maintenance Services" in the Index. When outside temperatures are above 90°F (32°C). At high speed for quite a while. In heavy traffic -- especially in hot weather. While pulling a trailer. 0 6-19