Toyota 2009 Tacoma User Manual page 72

Closing the fuel tank cap
Fuel types
n
Use unleaded gasoline. (87 Octane Rating [Research Octane Number 91] or
higher)
n Fuel tank capacity
Approximately 21.1 gal. (80.0 L, 17.6 Imp. gal.)
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.
1-5. Refueling
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