2004 Toyota Sienna Owners Manual - Page 457
2004 Toyota Sienna Manual
Page 457 highlights
04 SIENNA_U (L/O 0408) Engine oil selection "Toyota Genuine Motor Oil" is used in your Toyota vehicle. Use Toyota 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 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. API service symbol Outside temperature SAE 5W−30 is the best choice for good fuel economy and good starting in cold weather. ILSAC certification mark 457 2004 SIENNA from Aug. '04 Prod. (OM45422U)