2009 Toyota Sienna Owners Manual - Page 136

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. 1 Before driving n Fuel type Unleaded gasoline (87 Octane rating [Research Octane Number 91] or higher) n Fuel tank capacity (reference) 20.9 gal. (79 L, 17.5 Imp. gal.) 107