TOYOTA 2011 Avalon - Manual (Page 115)

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1-5. Refueling
AVALON_U (OM41428U)
Closing the fuel tank cap
After refueling, turn the fuel tank
cap clockwise until you hear a
click. The cap will revolve slightly
in the opposite direction once
released.
n Fuel types
Use unleaded gasoline. (Octane Rating 87 [Research Octane Number 91] or
higher)
n Fuel tank capacity
Approximately 18.5 gal. (70 L, 15.4 Imp.gal.)
n When the fuel filler door opener switch is inoperable
The lever can be used to open the fuel
filler door if the fuel filler door cannot be
opened using the inside switch because
the battery discharged or for any other
reason.