Notice: Use only engine oil identified as meeting
GM Standard GM6094M and showing the American
Petroleum Institute Certified For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
your warranty.
GM Goodwrench
®
oil meets all the requirements for
your vehicle.
If you are in an area of extreme cold, where the
temperature falls below 20°F (29°C), it is
recommended that you use either an SAE5W-30
synthetic oil or an SAE0W-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.

Engine Oil Additives

Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM6094M are all you will need for good performance
and engine protection.
Engine Oil Life System

When to Change Engine Oil

Yourvehicle has a computer system that lets you know
whento change the engine oil and filter. This is based on
enginerevolutions and engine temperature, and not on
mileage.Based on driving conditions, the mileage at
whichan oil change will be indicated can vary
considerably.For the oil life system to work properly, you
mustreset the system every time the oil is changed.
Whenthe system has calculated that oil life has been
diminished,it will indicate that an oil change is necessary.
ACHANGE ENGINE OIL message will come on. See
ChangeEngine Oil Message on page 3-44. Change your
oilas soon as possible within the next 600 miles
(1000 km). It is possible that, if you are driving under the
bestconditions, the oil life system may not indicate that
anoil change is necessary for over a year. However, your
engineoil and filter must be changed at least once a year
andat this time the system must be reset. Your dealer
hasGM-trained service people who will perform this work
usinggenuine GM parts and reset the system. It is also
importantto check your oil regularly and keep it at the
properlevel.
If the system is ever reset accidentally, you must
change your oil at 3,000miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed.
5-21