TOYOTA 2010 Sienna - Manual (Page 135)

108
1-5. Refueling
Closing the fuel tank cap
When replacing the fuel tank
cap, turn it until a clicking sound
is heard.
After releasing your hand, the cap
will turn slightly to the opposite
direction.
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Fuel type
Unleaded gasoline (Octane rating 87 [Research Octane Number 91] or
higher)
■
Fuel tank capacity (reference)
20.9 gal. (79 L, 17.5 Imp. gal.)