Engine Oil Additives; When to Change Engine Oil; How to Reset the GM Oil Life System- Page 257

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Engine Oil Additives

Don’t add anything to your oil. The recommended oils
with the starburst symbol are all you will need for good
performance and engine protection.

When to Change Engine Oil

Your vehicle has a computer that lets you know when to
change your engine oil. This is not based on mileage,
but on engine revolutions and engine operating
temperature. When the computer has calculated that the
oil needs changing, the GM Oil Life System

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 will

indicate that a change is necessary. The mileage between
oil and filter changes will vary depending on how you
drive your vehicle 

--

 usually between 3,000 miles 

(5 000 km) and 7,500 miles (12 500 km) since your 
last oil and filter change. Under severe conditions, the
system 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 and
filter every 3,000 miles (5 000 km) or sooner.
Remember to reset the CHANGE OIL SOON light
whenever the oil is changed.

How to Reset the GM Oil Life System

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After changing the engine oil, the system must be reset.
With the ignition key in RUN but the engine off, fully
push and release the accelerator pedal slowly three times
within five seconds. If the CHANGE OIL SOON light
flashes, the system is resetting. Turn the key to OFF,
then start the vehicle. The oil life will change to 100%.
If the CHANGE OIL SOON light comes back on, the
system has not reset. Repeat the procedure.

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
dealer, a service station or a local recycling center for help.