1998 Cadillac Eldorado Owner's Manual - Page 294

As shown in the chart, SAE 1OW-30 is best for your vehicle. However, you can use SAE 5W-30 if it's going to be colderthan 60°F (16°C) before your next oil change. When it's very cold, you should use SAE 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 m and filter -- usually between 3,000 miles (5 000 k ) 7,500 miles (12 500 k ) m since your last oil change. Under severe conditions,the indicator may come on before 3,000 miles ( 5 000 km). Never drive your vehicle or more than 7,500 miles (12 500 km) 12 months (whichever occurs first)without an oil change. The system won't dete.ct dust in theoil. So, if you drive in a dusty area,be sure to changeyour oil every 3,000 miles ( 5 000 krn) or sooner. Remember to reset theOil Life Indicatorwhen the oil has been changed. Formore information, see "Oil Life Indicator" in the Index. NOTICE: Use only engine oil with the American Petroleum Institute Certified For Gasoline Engines "Starburst" symbol. Failure to use the recommended oil can result in engine damage not covered by your warranty. GM Goodwrench@oil meets all the requirements for your vehicle. If you are in an area where the temperature falls below -20°F (-29"C), consider using either an SAE 5W-30 synthetic oil or an SAE OW-30 oil. Both will provide easiercold starting and better protection for your engine at extremely low temperatures. 6-14