2004 Lexus RX 330 Owners Manual - Page 665

ENGINE Engine oil selection "Toyota Genuine Motor Oil" is filled in your Lexus vehicle. Use Lexus approved "Toyota Genuine Motor Oil" or equivalent to satisfy the following grade and viscosity. Oil grade: API grade SL "Energy-Conserving" or ILSAC multigrade engine oil. Recommended viscosity: SAE 5W-30 Oil identification marks " API Service Symbol " ILSAC Certification Mark Either or both API registered marks are added to some oil containers to help you select the oil you should use. Outside temperature SAE 5W-30 is the best choice for good fuel economy and good starting in cold weather. If SAE 5W-30 is not available, SAE 10W-30 may be used. However, it should be replaced with SAE 5W-30 at the next oil change. D The API Service Symbol is located anywhere on the outside of the container. The top portion of the label shows the oil quality by API (American Petroleum Institute) designation such as SL. The center portion of the label shows the SAE viscosity grade such as SAE 5W-30. "Energy-Conserving", shown in the lower portion, indicates that the oil has fuel-saving capabilities. D The ILSAC (International Lubricant Standardization and Approval Committee) Certification Mark is displayed on the front of the container. 642