1993 Cadillac Eldorado Owner's Manual - Page 287

Oils with these words on the container help you save fuel. will This doughnut-shaped logo (symbol) used on most oil containers to is help you select the correct oil. You should look for this theoil container, and use on only those oils that display the logo. GM Goodwrench@oil (in Canada, GM Engine Oil) meetsall the requirements for your vehicle. Engine Oil Additives: Don't add anything to your Your Cadillac oil. dealer is ready to advise if you think something should be added. When to Change Engine Oil:Your vehicle is equipped with an engineoil life index (EOLI) feature as part of the Driver Information Center display (DIC). Oil change intervals are determined the EOLIand will by usually fall at, orbetween, the two recommended alternative intervals of 3,000 miles (5,000 kilometers) and 7,500 miles (12,500 kilometers), but very could be shorter than3,000 miles (5,000 kilometers) under some severe driving conditions shown in Schedule I. The system will also indicate the need for an oil change if 7,500 miles (12,500 kilometers) or one year has passed. Engine oil life remaining is displayed through engine data as the 'OIL LIFE INDEX' andas a 'CHANGE ENGINE OIC message. The 'OIL LIFE INDEX'display includes a number between 0 and 100. This is the percentage of oil life REMAINING based on driving conditions and mileage driven since the last time the oil life indicator was reset. When of the remaining oil life is less than lo%, a 'CHANGE OIL SOON' message will appear. Thisis a reminder to schedule an engine change. When oil the oil life index reaches 0, the 'CHANGE ENGINEOIC message will appear. This indicates that no oil remains and the oil should be life the changed as soon as possible, but certainly within next 200 miles (320 km). The EOLI will not detect excessively dusty conditionsor engine malfunctions which may effect the oil. If you drive in dusty areas, change the engine oil after every 3,000 miles (5,000 kilometers) or 3 months (whichever comes first), unless instructed doso sooner by the DIC. to On Northstar 4.6 Liter engine equipped vehicles a 'CHECK OIL LEVEE message will appear whenever the oil level's approximately one quartlow. 273