2011 Toyota Prius Owners Manual - Page 593

6-1. Specifications Cooling system Capacity Gasoline engine With an exhaust heat recovery system Without exhaust heat recovery system Power control unit 7.6 qt. (7.2 L, 6.3 Imp.qt.) 6.9 qt. (6.5 L, 5.7 Imp.qt.) 2.2 qt. (2.1 L, 1.8 Imp.qt.) Use either of the following: • "Toyota Super Long Life Coolant" • Similar high-quality ethylene glycol-based nonsilicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology Do not use plain water alone. Coolant type Ignition system Spark plug Make Gap DENSO SC20HR11 0.043 in. (1.1 mm) NOTICE n Iridium-tipped spark plugs Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine. 572 PRIUS_U (OM47685U) DVD