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Oils with these words on the container will help you save fuel.
This doughnut-shaped logo (symbol) is used on most oil containers to
help
you
select the correct oil.
You should look for this on the oil container, and use only those oils that
display the logo.
GM Goodwrench@ oil (in Canada, GM Engine Oil) meets all the
requirements for your vehicle.
Engine Oil Additives: Don't add anything to your oil. Your Cadillac
dealer is ready to advise if you think something should be added.
When to Change Engine Oil: Your vehicle is equipped with an engine oil
life index (EOLI) feature as part of the Driver Information Center
display (DIC). Oil change intervals are determined by the EOLI and will
usually fall at, or between, the
two
recommended alternative intervals of
3,000 miles (5,000 kilometers) and 7,500 miles (12,500 kilometers), but
could be shorter than 3,000 miles
(5,000
kilometers) under some very
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' and as 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 of the oil life indicator was reset. When
the remaining oil life is less than lo%, a 'CHANGE OIL SOON' message
will appear. This is a reminder to schedule an engine oil change. When
the oil life index reaches
0,
the 'CHANGE ENGINE OIC message will
appear. This indicates that no oil life remains and the oil should be
changed as soon as possible, but certainly within the next 200 miles (320
km).
The EOLI will not detect excessively dusty conditions or 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 to do so sooner by the DIC.
x u
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On Northstar 4.6 Liter engine equipped vehicles a 'CHECK OIL
LEVEE
message will appear whenever the oil level's approximately one quart low.
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