1997 Oldsmobile Aurora Owner's Manual - Page 270

Automatic TransaxleFluid When to Check and Change Operating the engine with the air cleaner off can cause you or others to be burned. The air cleaner not only cleans the air, it stops flame engine if the backfires. If it isn't there, and the engine backfires, you could be burned. Don't drive with it off, and be careful workingon the engine with off. the air cleaner A good time to check your automatic transaxle fluid level is when the engine oil is changed. Change both the fluid and filter every 50,000 miles (83 000 k ) the vehicle is mainly driven under one or m if more of these conditions: 0 In heavy city traffic where the outside temperature regularly reaches 90 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. 0 NOTICE: 0 If you do not use your vehicle under any of these If the air cleaner off, a backfire can cause is a conditions, the fluid and filter do not require changing. damaging enginefire. And, dirt caneasily get See "Scheduled Maintenance Services" in the Index. into your engine, which damage it. Always will have the air cleaner in place when you're driving. 6-18