2008 Lexus GS 350 Owners Manual - Page 538

6-1. Specifications GS350 2WD Oil capacity (drain and refill) with filter without filter Oil grade 6.6 qt. (6.3 L, 5.5 lmp.qt.) 6.7 qt. (6.4 L, 5.6 Imp.qt.) 6.2 qt. (5.9 L, 5.2 lmp.qt.) 6.3 qt. (6.0 L, 5.3 Imp.qt.) ILSAC multigrade engine oil Use Lexus approved "Toyota Genuine Motor Oil" or equivalent to satisfy the grade and viscosity shown below. Recommended oil viscosity 4WD Outside temperature Oil viscosity: l The 5W 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. l The 30 in 5W-30 indicates the oil viscosity when the oil is as 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 condition. 6 Vehicle specifications 545 GS_G_U March 29, 2010 3:11 pm