TOYOTA 2011 Tundra - Manual (Page 133)

108
1-5. Refueling
Closing the fuel tank cap
When installing the fuel tank cap,
turn it until you hear a click.
The cap will turn slightly to the
opposite direction when released.
Hang the fuel tank cap on the
back of the fuel filler door.
n Fuel types (Gasoline engine)
Use unleaded gasoline. (Octane rating 87 [Research Octane Number 91] or
higher)
n Fuel types (Flex-fuel engine)
Use unleaded gasoline (Octane rating 87 [Research Octane Number 91] or
higher), E85, or a blend of these two fuels. (
→P. 668)