2004 Cadillac Escalade EXT Owner's Manual - Page 319

• SAE 5W-30 As shown in the viscosity chart, SAE 5W-30 is best for your vehicle. However, if it is going to be 0°F (-18°C) or above and SAE 5W-30 is not available, you may use SAE 10W-30. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50. Oils meeting these requirements should also have the starburst symbol on the container. This symbol indicates that the oil has been certified by the American Petroleum Institute (API). You should look for this information on the oil container, and use only those oils that are identified as meeting GM Standard GM6094M and have the starburst symbol on the front of the oil container. 5-13