Oldsmobile 1998 Aurora Owner's Manual page 266

Engine Oil Additives
Don't add anything to
your
oil. Your retailer is ready
to advise if you think something should be added.
2. Press RESET and hold for five seconds. The word
RESET will appear, then OIL LIFE 100 % will
be displayed.
When to Change Engine Oil
Your vehicle has an Oil Life Indicator. The Oil Life
Indicator will let you know when to change your oil
and filter
--
usually between 3,000 miles ( 5 000 km)
and 7,500 miles (12 500 k m ) since your last oil change.
Under severe conditions, the indicator may come on
before 3,000 miles (5 000 km). Never drive your vehicle
more than 7,500 miles (12 500 km) or 12 months
(whichever occurs first) without an oil change.
The
system won't detect dust in the oil. So, if you drive in
a dusty area, be sure to change your oil every 3,000 miles
(5
000 km) or sooner. Remember to reset the Oil Life
Indicator when the oil has been changed. For more
information, see "Oil Life Indicator" in the Index.
How to Reset the Oil Life Indicator
Always reset the engine oil life to 100 percent after
every oil change. It will not reset itself. To reset the
OIL LIFE reminder, do the following:
1. With the ignition on, press the ENG button so the
OIL LIFE percentage is displayed.
What to Do with Used Oil
Did you know that used engine oil contains certain
elements that may be unhealthy for your
skin
and could
even cause cancer? Don't let used oil stay on your skin
for very long. Clean your skin and nails with soap and
water, or a good hand cleaner. Wash or properly throw
away clothing or rags containing used engine oil. (See
the manufacturer's warnings about the use and disposal
of oil products.)
Used oil can be a real threat to the environment. If you
change your own oil, be sure to drain all free-flowing oil
from the filter before disposal. Don't ever dispose of oil
by putting it in the trash, pouring it on the ground, into
sewers, or into streams or bodies of water. Instead,
recycle it by taking it to a place that collects used oil. If
you have a problem properly disposing of your used oil,
ask your retailer, a service station or a local recycling
center for help.
6-14