1998 Cadillac Seville Owner's Manual - Page 289

As shown in the chart, SAE 1OW-30 is best for your vehicle. However, you use SAE 5W-30 if it's going can 60 to be colder than O F (16" C )before your next oil SAE change. When it's very cold, you should use 5W-30. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils, such as SAE 20W-50. Engine Oil Additives Don't add anything to your oil. Your dealer is ready to advise if you think something should be added. When to Change Engine Oil Your vehicle has an Oil Life Indicator. This feature will let you know when to change your oil and filter -- usually between 3,000 miles (5 000 km) and 7,500 miles (12 500 k ) m since yourlast oil change. Under severe conditions, the indicator come on may before 3,000 miles(5 000 km). Never drive your vehicle more than 7,500 miles (12 500 km) or 12 months (whichever occurs first) without an oil change. NOTICE: Use only engine oil with the American Petroleum Institute Certified For Gasoline Engines "Starburst" symbol. Failure to use the oil. recommended oil can result in engine damage not The system won't detect dust in the So, if you to drive in a dusty area, be sure change your oil every covered by your warranty. 3,000 miles (5 000 km) or sooner. Remember to reset the Oil Life Indicator when the has been changed. oil GM Goodwrench@ oil meets all the requirements for For more information,see "Oil Life Indicator" in your vehicle. the Index. If you are in an area where the temperature falls below -20°F (-29"C), consider usingeither an SAE 5W-30 synthetic oil or an SAE OW-30 oil. Both will provide easier cold starting and better protection your engine for at extremely low temperatures. 6-14