Antifreeze for Toyota Prius
The Prius is probably the most common hybrid in Georgia, and its answer is simple: the factory Super Long Life Coolant is pink, so the right product is Valvoline Zerex Asian Red. The bottle names Toyota, Lexus and Scion directly.
Photographs come from the manufacturer's official materials.
Cooling system volume (litres) engine roughly four to five litres, plus a separate inverter circuit
The Prius has two cooling systems
Besides the engine circuit, the Prius has a separate loop for the inverter and power electronics, with its own reservoir and its own electric pump. This is the system nobody touches for a decade.
That inverter pump is itself a well-known failure point, and how it fares depends directly on how clean the fluid is and whether air has been left in the system.
Our direct advice to a Prius owner
Take the red. A pink system and a red fluid are the same family, the colour keeps its meaning, and every later decision stays simple.
For a top-up, Valvoline Zerex Asian Red is directly suitable, because it is the same pink and red HOAT type.
If you are doing a complete flush, one bottle of concentrate at 50/50 yields 7.5 litres, which covers the Prius engine circuit and, in most cases, the inverter circuit as well.
One rule does not change: never mix pink and blue.