1993 Cadillac Seville Owner's Manual - Page 158

You'll see how much oil lifeyou have left, as a percentage. if you see So, "95 OIL LIFE INDEX," for example, that means the way you're that 95% of your current oil lifeis still left. driving your car, The "OIL LIFE INDEX' may say to change the oil sooner than your maintenance schedule. This can happen if driving conditions, such as short tripsin cold weather,cause shorter oil life. Always keep written a record of the mileage anddate when you last changed your oil. For more information onwhen to change your oil, see "Maintenance the Schedule." If you see "CHANGEOIL SOON," it means that have lessthan 10% you 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 200 you should change the oil right (certainly within more miles away [320 k ] . m) The system probablywill say to change the oil between miles (5000 3000 km) and 7500 miles (12500 km),but it may even sayto change it before 3000 under very severe conditions. It all depends on your driving patterns. If it's been 7500 miles (12500 km) it will say to change oil. There are two things the system doesn't do: It can't sense heavy dustin the places where you drive. If you drivein a dusty area, you should change your oil every miles (5000 km) 3000 or 3 months (whichever comes first), unless the display says to change it even sooner than that. It doesn't check how much oil you have, you'll still have to check so for that.To see how, see Indexunder "Engine Oil." Also, for thesystem to work right,it is important that you use SG oil, as discussed earlier. when You've Changed the Oil When new oil is put you'll need to reset your system. do it, display in, To the "OIL LIFE INDEX' by pressing the "Information" button. Then press and hold the "STORE/RECALC' buttons the display shows until "100." 144