1995 Buick LeSabre Owner's Manual - Page 214

As shown in the chart on the previous page, SAE 1OW-30 is best for your vehicle. However, you can use SAE 5W-30 if it's going to be colder than 60°F (16°C) before your next oil change. When it's very cold, you should use SAE SW-30. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils, such as SAE 20W-SO. When to Change Engine Oil See if any one of these is true for you: 0 Most trips are less than 5 to 10 miles (8 to 16 km). This is particularly important when outside temperatures are below freezing. Most trips include extensive idling (such as frequent driving in stop and go traffic). Most trips are through dusty areas. your car. 0 NOTICE: Use only engine oil with the American Petroleum Institute CertifiedFor Gasoline Engines "Starburst" symbol. Failure to use the proper oil can result in engine damage not covered your by warranty. GM Goodwrench' oil (in Canada, GM Engine Oil) meets all the requirements for your vehicle. 0 a You frequently tow a trailer or use a carrier on top of If any one of these is true for yourvehicle, then you need to change your oil and filter every 3,000 miles ( 5 000 km) or 3 months -- whichever comes first. (See "Change Oil Indicator'' in the Index.) If none of them is true, change the oil and filter every 7,500 miles ( 12 500 km) or 12 months -- whichever comes first. Engine Oil Additives Don't add anything to your oil. Your Buick dealer is ready to adviseif you think something should be added. (See "Change Oil Indicator" in the Tndex.)