Toyota Prius 2011 Manual page 107

Closing the fuel tank cap
Fuel types
■
Use unleaded gasoline. (Octane Rating 87 [Research Octane Number 91] or
higher)
Fuel tank capacity
■
Approximately 11.9 gal. (45 L, 9.9 Imp. gal.)
After refueling, turn the fuel tank
cap clockwise until you hear a
click. The cap will revolve slightly
in the opposite direction once
released.
1-6. Refueling
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