Prius L4-1.8L (2ZR-FXE) Hybrid (2010)
Coolant: Fluid Type Specifications
Coolant
Type ................................................................................................................................................................................ "Toyota Super Long Life Coolant"
Or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology.
Do not use plain water alone.