1995 Buick LeSabre Owner's Manual - Page 278

I Maintenance Schedule I 1 100,000 Miles (166 000 km) 0Change automatic transaxle fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city traffic where the outside temperature regularly reaches 90 O 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 f you do not use your vehicle under any of these conditions, the fluid and filter do not require changing. DATE ACTUAL 99,000 Miles (165 000 km) El Change engine oil and filter(or every 3 months, whichever occurs first). An Emission Control Sewice. * MILEA"" 7-26