Engine Oil Additives; When To Change Engine Oil - Chevrolet 1997 Corvette Owner's Manual

Your Corvette engine is filled at the factory with a
Mobil l @ synthetic oil, which meets all requirements for
your vehicle.
Substitute Oil: When adding oil to maintain engine oil
level, oil meeting GM Standard GM4718M may not be
available. You can add substitute oil designated SAE
5W-30 with the "Starburst" symbol at all temperatures.
If temperatures are above 0°F (- 18
O
C), you may
substitute SAE 1OW-30 with the "Starburst" symbol.
Substitute oil not meeting GM Standard GM4718M
should not be used for an oil change.
Engine Oil Additives
Don't add anything to your oil. Your Chevrolet dealer is
ready to advise if you think something should be added.
When to Change Engine Oil
Your Corvette has
an
Engine Oil Life Monitor. This
feature will let you know when to change your oil and
filter -- usually between 3,000 miles (5 000
km) and
10,000 miles (1 6 000
km)
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 10,000 miles (1 6 000
km)
or 12 months
(whichever occurs first) without an oil change. Use
engine oil meeting the GM Standard GM4718M.
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 k m )
or sooner if the CHANGE OIL
light comes on. Remember to reset the Engine Oil Life
Monitor when the oil has been changed. For more
information, see "Engine Oil Life Monitor" in the Index.
When Changing the Engine Oil
There is a special procedure for changing engine oil.
Contact your Chevrolet dealer for additional information
or the procedure can be found in a Corvette Service
Manual. To purchase a service manual, see "Service and
Owner Publications" in the Index.
How to Reset the Engine Oil Life Monitor
Press RESET to acknowledge the CHANGE OIL SOON
warning. The oil page on the DIC will then show a
message such as OIL LIFE 0%.
To
reset the monitor,
press and hold RESET for two seconds. You will then
receive a message such as OIL LIFE 99%.