1994 Cadillac DeVille Owner's Manual - Page 277

Engine OilAdditives Don't add anything to your oil. Your Cadillac dealer is ready to advise if you think something shouldbe added. M e n to Change Engine Oil Your Cadillac hasan "Oil Life Indicator." This feature will let you know when to change your oil-- usually between 3,000 miles ( 5 000 km) and 7,500 miles (12 500 km) since your last oil change. Under severe conditions, the indicator may come on before 3,000 miles ( 5 000 km). Never drive your vehiclemore than 7,500 miles (12 500 km) or 12 months nge.without an oil The system won'tdetect dust in the oil. So, if you drive in a dusty area, be sure tochange your oil every 3,000 miles (5 000 km) or sooner if the "CHANGE ENGINE O K ' message is displayed. Remember to reset the Oil Life Indicator when the oil has been changed. Formore information, see "Oil Life Indicator" in the Index. How to Reset the Oil Life Indicator After theoil has been changed, displaythe "OIL LIFE LEFT" message by pressing the INFORMATION button. Then press and holdthe RESET buttonuntil the display shows "100". This resets oil life index. the The message will remain off until the next oil change is needed. The percentage of oil life remaining may be checked at any time by pressing the INFORMATIONbutton several times untilthe "OIL LIFE LEFT" message appears. For more information on the Oil Life Index feature, see "Oil Life Index" inthe Index. Engine Coolant Heater (Engine Block Heater) A n engine coolant heater can be a big help if you have to park outside in very cold weather, 0°F (-18°C) or colder. If your vehicle has this option, see "EngineCoolant Heater" in the Index. 264