Toyota 2014 Sienna Manual page 800

6-1. Specifications
■
Engine number
The engine number is stamped on the engine block as shown.
Engine
Model
Type
Bore and stroke
Displacement
Drive belt tension
Valve clearance
Fuel
Fuel type
Octane rating
Fuel tank capacity
(Reference)
800
SIENNA_OM_OM45483U_(U)
3.5L 6-cylinder (2GR-FE)
6-cylinder V type, 4-cycle, gasoline
3.70  3.27 in. (94.0  83.0 mm)
3
210.9 cu.in. (3456 cm
Automatic adjustment
Unleaded gasoline only
87 (Research Octane Number 91) or higher
20.9 gal. (79 L, 17.4 Imp.gal.)
)