2003 Toyota Prius Owners Manual - Page 247

ENGINE LUBRICATION Oil capacity (drain and refill), L (qt, lmp. qt.): With filter Without filter 3.7 (3.9, 3.3) 3.4 (3.6, 3.0) Recommended oil viscosity: SAE 5W-30 181.COOLING SYSTEM Total capacity, L (qt., Imp. qt.): For gasoline engine 4.9 (5.2, 4.3) For electric motor and inverter and converter 2.6 (2.7, 2.3) Coolant type: "Toyota Genuine Long Life Coolant" is filled in your Toyota vehicle. In order to avoid technical problems, we strongly recommend using "Toyota Genuine Long Life Coolant" or equivalent. Please contact your Toyota dealer for further details. With ethylene-glycol type coolant for a proper corrosion protection of aluminum components Do not use alcohol type antifreeze or plain water alone. AUXILIARY BATTERY Open voltage at 20_C (68_F): 12.6 - 12.8 V Fully charged 12.2 - 12.4 V Half charged 11.5 - 11.9 V Discharged [Voltage that is checked 20 minutes after the key is removed with all the lights turned off] Charging rates: 3.5 A max. "Toyota Genuine Motor Oil" is filled 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. oil008 Temperature range anticipated before next oil change Please contact your Toyota dealer for further details. 240