1997 Chevrolet Lumina Owner's Manual - Page 250

Automatic Transaxle Fluid When to Check and Change Operating the engine with air cleaner off can the cause you or others to be burned. The air cleaner not only cleans air, it stops flameif the engine the backfhes. If it isn't there,and the engine backfhes, you could be burned. Don't drive with it off, and be careful working on the n h e with e the air cleaner off. A good time tocheck your automatic transaxle fluid level is when the engine oil is changed. Change both the fluid and every 50,000 miles filter (83 000 km) if the vehicleis mainly driven under or one more of these conditions: 0 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. 0 0 NOTICE: 0 If the air cleaner is a backfire can cause off, a dirt damaging engine fire. And, can easily get See "Scheduled Maintenance Services" in the Index. into your engine, which will damage it. Always have theair cleaner in place when you're driving. If you do not use your vehicle under any of these conditions, the fluid and filter do not require changing. 6-18