2006 Lexus ES 330 Owners Manual - Page 350

ENGINE Oil identification mark CHECKING THE ENGINE COOLANT LEVEL The ILSAC (International Lubricant Standardization and Approval Committee) Certification Mark is added to some oil containers to help you select the oil you should use. To ensure excellent lubrication performance for your engine, "Toyota Genuine Motor Oil" is available, which has been specifically tested and approved for all Lexus engines. Please contact your Lexus dealer for further details about "Toyota Genuine Motor Oil". " 1 Reservoir cap 2 Upper line 3 Lower line Look at the see−through coolant reservoir when the engine is cold. The coolant level is satisfactory if it is between the "F" and "L" lines on the reservoir. If the level is low, add the coolant. (For the coolant type, see "Coolant type selection" described below.) The coolant level in the reservoir will vary with engine temperature. However, if the level is on or below the "L" line, add coolant. Bring the level up to the "F" line. 350