Engine Oil Life System

Specification

Ask for and use full synthetic engine oils that meet the dexos1

specification. Engine oils that have

been approved by GM as meeting the dexos1 specification are marked with the dexos1 approved logo. See

Caution

Failure to use the recommended

engine oil or equivalent can result in engine damage not covered by

the vehicle warranty.

Viscosity Grade

Use SAE 5W-30 viscosity grade engine oil.

Cold Temperature Operation: In an area of extreme cold, where the

temperature falls below −29 °C (−20 °

F), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at

extremely low temperatures. When selecting an oil of the appropriate

viscosity grade, it is recommended to select an oil of the correct

specification. See “Specification”

earlier in this section.

Engine Oil Additives/Engine Oil Flushes

Do not add anything to the oil. The

recommended oils meeting the dexos1 specification 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.

What to Do with Used Oil

Used engine oil contains certain

elements that can be unhealthy for your skin and could even cause

cancer. Do not 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 dispose of 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 threat to the

environment. If you change your own oil, be sure to drain all the oil from

the filter before disposal. Never

dispose of oil by putting it in the trash or pouring it on the ground, into

sewers, or into streams or bodies of

water. Recycle it by taking it to a place that collects used oil.

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 a combination of factors which include

engine revolutions, engine

temperature, and miles driven. 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.