Chevrolet 2009 TrailBlazer Specifications download pdf (Page 328)

Substitute Engine Oil: When adding oil to maintain

engine oil level, oil meeting GM Standard GM4718M

might not be available. You can add substitute oil

designated SAE 5W-30 with the starburst symbol at all

temperatures. Substitute oil not meeting GM Standard

GM4718M should not be used for an oil change.

Cold Temperature Operation

Except Vehicles with 6.0L V8 (VIN Code H)

Engine

If in an area of extreme cold, where the temperature

falls below −20°F (−29°C), use either an SAE 5W-30

synthetic oil or an SAE 0W-30 engine oil. Both provide

easier cold starting for the engine at extremely low

temperatures. Always use an oil that meets the required

speciﬁcation, GM6094M. See “What Kind of Engine Oil

to Use” for more information.

Engine Oil Additives / Engine Oil

Flushes

Do not add anything to the oil. The recommended oils

with the starburst symbol that meet GM standards are

all that is needed for good performance and engine

protection.

Engine oil system ﬂushes are not recommended and

could cause engine damage not covered by the vehicle

warranty.

Engine Oil Life System

When to Change Engine Oil

This vehicle has a computer system that indicates when

to change the engine oil and ﬁlter. This is based on

engine revolutions and engine temperature, and not on

mileage. Based on driving conditions, the mileage at

which an oil change is indicated can vary considerably.

For the oil life system to work properly, the system

must be reset every time the oil is changed.

When the system has calculated that oil life has been

diminished, it indicates that an oil change is necessary.

A change engine oil light comes on, and, if the vehicle

has a Driver Information Center (DIC), a CHANGE

ENGINE OIL message comes on. See Change Engine

Oil Light on page 3-43 and DIC Warnings and Messages

on page 3-51. Change the oil as soon as possible within

the next 600 miles (1 000 km). It is possible that, if driving

under the best conditions, the oil life system might not

indicate that an oil change is necessary for over a year.

However, the engine oil and ﬁlter must be changed at

least once a year and at this time the system must be

reset. Your dealer/retailer has trained people who will

perform this work using genuine parts and reset the

system. It is also important to check the oil regularly

and keep it at the proper level.

If the system is ever reset accidentally, the oil must be

changed at 3,000 miles (5 000 km) since the last oil

change. Remember to reset the oil life system whenever

the oil is changed.

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Chevrolet 2009 TrailBlazer Specifications Page 328

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