1993 Cadillac Eldorado Owner's Manual - Page 154

Information Center. If this message should appear, have your vehicle serviced at your Cadillac dealer atyour earliest convenience. Oil Life Indicator Your Cadillac has a Driver Information Cente.r with an Oil Change Indicator feature. This tclls you when you need to change your engine oil. It's based upon the engine oil temperatures and your driving patterns. ITo see the display, press the Information button several times until " OTL LIFE INDEX" appears. ... You'll see how much oil life you have left, as a percentage. So, if you see "95 OIL LIFEINDEX," for example, that means that the way you're driving your car, 95% of your current oil life is still left. The "OIL LIFE INDEX"may say to change the oil sooner than your maintenance schedule. This happen if driving conditions, such as can short trips in cold weather, cause shorter life. Always keep a written oil record of the mileage and datewhen you last changed your oil. For more information on when to changeyour oil, see the "Maintenance Schedule." If you see "CHANGE OIL SOON," it means that you have less than 10%. of your oil life left, and you should consider changing your engine oil. If you see "CHANGE ENGINE OIL," it means the oil life is gone and you should change the oil right away (certainly within 200 more miles [320 km]). 140