2009 Lexus LS 600h Owners Manual - Page 645

6-1. Specifications Lubrication system Oil capacity drain and refill (reference) with filter without filter 9.5 qt. (9.0 L, 7.9 Imp. qt.) 8.9 qt. (8.4 L, 7.4 Imp. qt.) n Engine oil selection "Toyota Genuine Motor Oil" is used in your Lexus vehicle. Use Lexus approved "Toyota Genuine Motor Oil" or equivalent to satisfy the following grade and viscosity. Oil grade: ILSAC multigrade engine oil Recommended viscosity: SAE 5W-20 or 0W-20 SAE 5W-20 or 0W-20 engine oil may be used. However, SAE 0W20 is the best choice for good fuel economy, and good starting in cold weather. Outside temperature The 0W portion of the oil viscosity rating indicates the characteristic of the oil which allows cold startability. Oils with a lower value before the W allow for easier starting of the engine in cold weather. The 20 in 0W-20 indicates the oil viscosity when the oil is at its operating temperature. An oil with a higher viscosity may be better suited if the vehicle is operated at high speeds, or under extreme load conditions. 650