2007 Toyota Prius Owners Manual - Page 423

Checking the coolant level 82P111 Oil identification mark 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 Toyota engines. Please contact your Toyota dealer for further details about "Toyota Genuine Motor Oil". Engine coolant reservoir 82P112 Inverter coolant reservoir 406