1996 Buick LeSabre Owner's Manual - Page 244

I A CAUTION: L I Automatic Transaxle Fluid When to Check and Change A good time to check your automatic transaxle fluid level is when the engine oilis changed. Change both the fluid and filter every50,000 miles (83 000 km) if the vehicle is mainly driven under one or more of these conditions: 0 I Operating the engine with the air cleaner off can causeyou or others to be burned. The air it cleaner not only cleans the air, stops flames if the engine backfires.f it isn't there, and the I engine backfires, you could be burned. Don't drive with it off, and be careful working on the air engine with the cleaner off. In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) orhigher. 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 you do not use your vehicle under any of these If the air cleaner off, a backfire can causea is conditions, the fluid and filter do not require changing. damaging engine fire. And, dirt can easily get See "Scheduled Maintenance Services" in the Index. into yourengine, which will damage it. Always have the air cleaner in place when you're driving. 6-16