2012 Toyota Highlander Owners Manual - Page 544

6-1. Specifications Engine Model Type Bore and stroke Displacement Drive belt tension 2GR-FXE 6-cylinder V type, 4-cycle, gasoline 3.70 × 3.27 in. (94.0 × 83.0 mm) 210.9 cu.in. (3456 cm3) Automatic adjustment Fuel Fuel type Octane rating Fuel tank capacity (Reference) Unleaded gasoline only 87 (Research Octane Number 91) or higher 17.2 gal. (65.0 L, 14.3 Imp. gal.) 6 Vehicle specifications 573