Cadillac 2009 CTS User Manual download pdf (Page 326)

100

101

What Kind of Engine Oil to Use

Look for three things:

• GM4718M

This vehicle’s engine requires a special oil meeting

GM Standard GM4718M. Oils meeting this standard

may be identiﬁed as synthetic. However, not all

synthetic oils will meet this GM standard. Use only

an oil that meets GM Standard GM4718M.

Notice: Using oils that do not have the GM4718M

Standard designation can cause engine damage not

covered by the vehicle warranty.

• SAE 5W-30

SAE 5W-30 is best for the vehicle. These numbers

on an oil container show its viscosity, or thickness.

Do not use other viscosity oils such as SAE 20W-50.

• American Petroleum Institute (API) starburst symbol

Oils meeting these

requirements should have

the starburst symbol on

the container. This symbol

indicates that the oil

has been certiﬁed by the

American Petroleum

Institute (API).

This vehicle’s engine was ﬁlled at the factory with a

Mobil 1

synthetic oil meeting all requirements for this

vehicle.

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.

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